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Upcoming Events

19 Jul 2026;
11:00AM - 04:00PM
2026 ORG&HPS Garden Tour
13 Sep 2026;
01:00PM - 05:00PM
Sue Payne, Miniature Hostas

What's New!

  • 2026 Meeting Dates
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Plant of the Month

 

Armoracia rusticana 'Variegata'

Armoracia rusticana 'Variegata'

 

 

 

Toronto Botanical Garden

Our in-person meetings are held at the TBG.

Fritiallaria banner

Plant of the Month: May 2022

GENERAL INFORMATION: 

Fritillaria imperialis is one of the earliest wild flowers to be grown in our gardens. John Gerard (Gerard’s Herbal) grew them in London, England, in the late 1500s. He wrote “…. hath for his root a thick firm and solid bulb, covered with a yellowish film or skin, from the which riseth up a great thick fat stalk two cubits high, in the bare and naked part of a dark overworn dusky purple colour. The leaves grow confusedly about the (lower half of the) stalk like those of the white Lily, but narrower: the flowers grow at the top of the stalk, encompassing it round in form of an Imperial crown” There is a cluster of leaves crowning the ring of flowers. Perdita’s (in Shakespeare’s “A Winter’s Tale”) bouquet has “bold  oxlips and the Crown Imperial”. 

Fritillaria buds Fritillaria young shoots

Fritillaria imperialis early April                                                             Mid April

The European Blue Tit is a pollinator.

The first owner of our house planted some here, before 1970. Perhaps in the 1950s.  The clump is still here in the same place. I have carefully removed bulbs from the outer edges.

Common Name: Crown Imperial Fritillary, Kaiser’s Crown.

Cultivars: many -

Fritillaria imperialis ‘Rubra maxima’ red-orange.

Fritillaria imperialis ‘Maxima Lutea’ large yellow.

Fritillaria imperialis var lutea wildFritillaria imperialis var. lutea in wild

Fritillaria imperialis ‘Garland Star’ curly leaves, orange red colouring. 

The Composer series are shorter. Fritillaria imperialis ‘Chopin’ is 60 cm with small yellow-orange flowers. F. i. ’Brahms’ has salmon-pink flowers.

 Fritillaria Vivaldi

Fritillaria imperialis ‘Chopin’

Fritillaria imperialis ‘Aureo-marginata’ - yellow and green variegated leaves.

Fritillaria imperialis ‘Kroon op Kroon’ Double layer of bells.

Life Cycle: Perennial bulb.

Height: 0.5 - 1.5m

Bloom Time: Late April - May in Southern Ontario.


Fritillaria imperialis Kroon type in wild

Fritillaria imperialis 'Kroon' type in wild

Fritillaria close up

Flower Colour & Size:  Ring of perhaps 10, red-orange or yellow, down or slightly outfacing 6-tepelled chunky bells, often dark at the base. The bells are up to 8 cm long. Copious nectar. Stamens exserted.

Scent: Skunk-like smell from bulbs and leaves. Deters deer and rodents.

Stems: Dark green to almost black.

Leaves: Glossy green, lance shaped, on the lower part of the flowering stem, also forming the “crown”.

Range: Central Turkey, east to the Himalayan foothills.

Fritillaria imperialis in Iran 1

        Fritillaria in wild 3  Fritillaria in Iran 2

 

Habitat: Fritillaria imperialis in Iran - screes, clay valley bottoms, grassy areas.

CULTIVATION: 

Plant: bulbs 25-30 cm deep, with the tip pointing up. Add a layer of sand compost below your bulb. Ignore the hole left by the dead stalk. Add some compost as you refill. 

Light:  Full sun to some afternoon shade. Deciduous shade from late opening shrubs is fine.

Soil: Deep and well drained, nutrient medium rich. Mulch in winter.

Water:  Water well in active growth. Mulch with compost and add bulb fertilizer as directed. Minimum water in summer when the bulbs are dormant. Summers are hot and dry in their native habitat where the surface soil is very dry, wth some moisture deep down.

USDA Hardiness: Zones 5-9

Companion planting: Other spring bulbs, Hosta, ferns, Forsythia.

 Fritillaria with Forsythia

Fritillatia imperialis with Forsythia

Propagation: seed, bulb offshoots.

 Fritillaria seeds

Fritillaria Seeds

Seedex availability: Occasionally ORG&HPS annual Seed Exchange. 

Germination Tips: Fresh seed germinates best. Otherwise, plant and leave pot at 4°C, then 20°C for 3 months each. Repeat cycles. Do not transplant for 2 years. Flowering may be 5 years after germination.

Problems:  Poisonous.

Check for Lily Beetle in the early spring. Hand removal is best.

References: Wikipedia

https://www.plantopedia.com/fritillaria-imperialis

Gerard’s Herball  1597

 

Text and images supplied by Anna Leggatt


Plant of the Month: April 2022

 Sanguinaria canadensis 3

Sanguinaria canadensis f. multiplex ‘Plena’ 

Sanguinaria canadensis, the common Bloodroot, carpets our woodland floors in early spring as the buds overhead start to swell. Their beauty is fleeting - true spring ephemerals. Petals soon drop after pollination, which occurs in a few days.

 Sanguinaria canadensis in wild

Sanguinaria canadensis in wild

However, a double, longer lasting form with multi-petals was found in 1916 in Dayton, Ohio. This is sterile, with only petals, so there is no fertilization to trigger petal drop. It was thought to be lost, but had been propagated in Montreal Botanical Garden. Today, Sanguinaria canadensis f. multiplex ‘Plena’ is available in many specialized nurseries and society plant sales. It is a handsome addition to the spring garden. All plants we grow are clones of the original plant.

Sanguinaria canadensis 13

Sanguinaria canadensis f. multiplex ‘Plena’ 

It is a member of the Papaveraceae (the poppy family) and contains a coloured, alkaloid rich, toxic latex like many of this family. Here, the latex is red (sanguine). The First Nations used this for traditional medicine, to colour baskets, clothing, war paint and as an insect repellant.

GENERAL INFORMATION: 

Synonyms: Sanguinaria canadensis var. rotundifolia, Sanguinaria canadensis ‘Multiplex’ 

Common Name: Bloodroot, Puccoon

Life Cycle: Perennial rhizome

Height: 20 cm

Bloom Time: April - May

Flower Colour & Size: Pure white, solitary, 7 cm wide. Sometimes bluish in bud.

Leaves: Simple, bluish grey green, round, with scalloped edges. One leaf clasps each flower stalk till it opens. Leaves become dormant in mid-late summer.  


Sanguinaria canadensis 7

Emerging flower protected by leaf 

Sanguinaria canadensis 16

 Open flower 

Range:  From Quebec to Manitoba, south to Florida and Texas. 

Habitat: Rich, deciduous woodland.

CULTIVATION: 

Plant rhizomes just below the soil surface. Toxic - use gloves. It will slowly form attractive clumps. Mulch with deciduous leaves in the fall.

Sanguinaria canadensis f. multiplex Plena Rhizome

Sanguinaria rhizome 

Light:  Shade, part shade. 

Soil: Humus rich. pH 7, around neutral.

Water:  Moist, well drained.

USDA Hardiness: Zone 3 - 8b.

Companion Plants: Native woodlanders, other spring bulbs, small ferns, Hosta, clumping Epimedium.

Propagation: Division of rhizomes when leaves die down

Seedex availability: No seed - flowers sterile

Problems: Unexplained death. Many clumps suddenly died in many gardens a few years ago. Luckily I had one clump left. Could it be clonal age? - all the same age! My present clumps seem healthy. Divide every three or four years.

Toxicity: Plants for a Future (pfaf.org) states that the plant, especially the roots are toxic, and contain a number of opium-like alkaloids. It is anaesthetic, cathartic, emetic, expectorant, diuretic, febrifuge, sedative, stimulant. It is taken internally in the treatment of bronchial, respiratory tract and throat infections, and poor peripheral circulation. It is used in traditional medicine but needs medical supervision. The extract, sanguinarine, was used in toothpaste and mouthwash about 20 years ago but has been withdrawn.

References: Encyclopedia of Alpines; AGS Publications 1994

Plants for a Future (pfaf.org)

(Text and images contributed by Anna Leggatt)

 

 Plant of the Month for March 2022

Daphne mezereum album 6

Daphne mezereum album

Daphne mezereum f. alba

GENERAL INFORMATION:

Daphne mezereum f. alba is an early flowering shrub. One name is February Daphne. Our climate in Southern Ontario is too cold for this name to fit! They flower in England in mid February. The flower buds open here in late March. Buds form in the fall and are clustered alternately along the ends of the twigs. The flowers are fragrant, small, whitish, 4-petalled and tubular. Small leaves appear as the clusters of flowers fully open. These leaves are 2 cm long, more or less elliptical and mid dull green.

Daphne mezereum album 2

Daphne mezereum f. alba - flowers

Green berries (actually drupes, 6 mm long) turn orange in July. They fall off at the touch when ripe and are often eaten by birds and chipmunks. Uneaten seeds readily germinate under the parent plant.

Daphne mezereum album berries

Daphne mezereum f. alba - berries

The berries, sap and bark are poisonous.

Life Cycle: Small deciduous shrub.

Size: 1-1.5m tall, 1m wide after about 10 years.

Bloom Time: March, April.

Native to: Europe across to Siberia.

Habitat: Woodland, forest margins.

Cultivars: D. m. f alba ’Bowles’ White’ and ‘Paul’s White’ are said to have purer white flowers. It is unlikely these are still available due to DSDS (see below) and seed sourced supplies.

CULTIVATION:
Light: Part shade to full sun. Protect from hot weather.

Soil: Well drained, neutral to alkaline, fertile but moisture retentive. Small plants succeed best as Daphne resents root disturbance.

Water: Mulch to prevent water loss 

USDA Hardiness: Zone 4-7

Companion plants: Snowdrops and other early spring bulbs, hellebores, small hosta 

Daphne mezereum album 5

Daphne mezereum f. alba  with spring bulbs

Pruning: Minimum. Remove dead or damaged wood.

Problems: All my shrubs have died between 5 and 10 years of age. I find a plant has wilted overnight. This is probably Daphne Sudden Death Syndrome (DSDS), a disease that suddenly kills the plant. There is nothing to do to treat this fungus. Avoid cutting older branches helps. Luckily my plants have been replaced by seedlings growing under their parent.

Flower buds survive low temperatures till they start to open. Then very low temperatures will damage them.

Daphne mezereum album winter twig

Daphne mezereum f. alba - winter twig

Mulching is important to prevent the roots from drying out. Watch for aphids. We have plenty of birds which seem to keep problem insects at bay.

Propagation: Seed, root, softwood and hardwood cuttings. I have not attempted cuttings. 

Seedex availability: Usually ORG&HPS Annual Seed Exchange

Germination Tips: Remove pulp and plant fresh outside. If dry, rub gently with sandpaper, soak in warm water. Then repeated cycles of 4°C, then 20°C for 3 months each.

(Text and images contributed by Anna Leggatt)

 

 Plant of the Month for February, 2022

eranthis header

 

Eranthis hyemalis, the winter aconite, is an early bloomer, heralding spring. It often flowers through the snow, soon after the first snowdrops. 

Eranthis in the Snow

Eranthis in the Snow

 

Eranthis in Ice

Eranthis in Ice

A curved stalk drags up a flower bud, surrounded by finger-like bracts. It straightens, opening to a 5-8 (usually 6) sepalled yellow cup above a ruff of bright green bracts. Petals are reduced to nectaries. Central follicles are surrounded by numerous stamens. Leaves, similar to the bracts, grow up as the flowers mature. 

 

Eranthis showing Nectaries
Eranthis showing Nectaries

I remember a patch several metres wide in  England when I was a child. My Grandmother planted them in the 1920s. They were still there in 2009!

Other Species and Cultivars: 

There are eight species and many cultivars. These include:

Eranthis cilicicia (Cilicicia Group) blooms a little later with slightly larger flowers and more deeply dissected bracts and leaves.

Eranthis cilicicia
Eranthis cilicicia on left

Eranthis x tubergenii is a hybrid between these two species with larger, sterile flowers

Eranthis x tubergenii ‘Guinea Gold’ has deeper yellow flowers, bronze leaves and is scented

Eranthis pinnatifida and Eranthis stellata are white flowered.

Eranthis hyemalis ‘Flore Pleno’ is one of several double cultivars

Eranthis hyemalis ‘Moonlight’ is light yellow, found in an Ithaca NY garden.

General information: 

Life Cycle: Long lived perennial tuber

Dimensions: Inflorescence 2.5 cm across. Height 10-15 cm tall as the flowers mature

Bloom time: Late February to April. The leaves die down as shade increases and the soil dries.

Distribution:  E. hyemalis is native to eastern Europe to Iraq. E. cilicicia - western to central Asia. The white species grow in the far east.

Habitat: Woodlands

Cultivation: Buy tubers in the fall as early as possible. Soak in luke warm water for 12 hours before planting in groups 5-10 cm deep, in deciduous shade to morning sun. They will soon clump up and form a mat. They can grow in a lawn. However, do not mow till the leaves start to wither.

Companion plants: Crocus, Hellebores, Hosta

eranthis_self_seeding_on_mound.jpg

 Eranthis self seeding on mound

Flowers, then leaves & developing follicules with Hellebores, etc.
Leaves & developing follicules

Soil: Humus rich alkaline to neutral well drained soil.

Water: Do not let it dry out when dormant.

Hardiness: USDA Zone 4-7

Propagation: Plant “In the green”. Dig up clumps after flowering, divide and replant. 

Seeds are recalcitrant.  Direct sow outside as soon as the seeds turn from green to black. They will germinate in the late winter, with the seedlings emerging as the plants flower. They withstand frost.

I have had no success with Eranthis seeds from exchanges.

Notes: It is toxic like all members of the Ranunculaceae. Don’t nibble on the plant! Symptoms of poisoning include vomiting, diarrhoea, disturbed vision and cardiac arrest.

Animals avoid eating leaves.

No pests or diseases.

Source of pollen and nectar for early pollinators.

Eranthis Hyemalis with Bee
Eranthis hyemalis with Bee

I have 100s of plants, nearly all E. hyemalis. There are a few E. cilicicia or perhaps the hybrid. Dry summers may have reduced the numbers of the later.

I am looking for other cultivars.

For more information:

https://www.pacificbulbsociety.org/pbswiki/index.php/Eranthis

(Text and Images contributed by Anna Leggatt)

Plant of the Month for January, 2022

 

gMpOatfSMqzNyi1pKDVRg_thumb_2aa6.jpeg

 

Here in Toronto, I start looking for Galanthus nivalis, (Milk-flower of the Snow), the common snowdrop, in mid-December. Tips are visible whenever the snow melts. I expect to see the first flowers in mid-January, though they may not appear till the end of February. Those in colder spots may not open until late March. There are now thousands in our garden so we have flowers from February to May.

Galanthus elwesii 2021-02 03

Galanthus elwesii 2021/02/03

Species and Cultivars:

Galanthus nivalis is native to Europe. Two thin grey-green leaves grow from each bulb. A leafless flower stalk can be up to 15 cm high with a dangling white “bell”. The three outer tepals are like long thin spoons. The three inner tepals are much shorter and are not curved. They are characteristically marked with a greenish U over the terminal notch.

Galanthus nivalis Galanthus nivalis  

There are many hybrids and cultivars although there are only 20 species. Galanthophiles will pay $1000s for a new form with different markings. I am content with a few distinct forms.

G. nivalis F. pleniflorus 'Flore Pleno' grew on an ivy-covered bank close to my home in England. Cut flowers were thought to be unlucky in the house. However, we gathered bunches to sell for church fund raising. These bulbs were planted about 1900 and made a fine show as we walked past after our wedding in 1965.

Galanthus Flore Pleno

  Galanthus nivalis 'Flore Pleno'

I have some clumps of double snowdrops here which are rapidly bulking up. There are 5 or 6 outer tepals and many inner ones.

At first glance, Galanthus elwesii, the giant snowdrop, appears similar, though larger. It grows up to 25 cm tall and the wider leaves fold around each other. The inner tepals have green tips and bases. The amount of green varies considerably.

 Galanthus elwesii

Galanthus elwesii

Galanthus elwesii longer tepals

Galanthus elwesii - longer tepals

Some I grow include:

  • ‘Magnet’ has long stems so the flowers twist in the breeze.
  • ‘S. Arnott’ has tepals which spread out more.
  • ‘Green Tips’ has green on the tip of the outer tepals. Unfortunately my clump, though growing well, has only a faint hint of yellow, not green.
  • My favourite just appeared in the garden (I am always checking). They have shorter outer tepals which stick out looking like little propellers. Look out for different forms. Many choice bulbs just appeared in gardens and the wild.

 Galanthus elwesii Propeller

Galanthus elwesii "propeller"

Snowdrops with yellow markings on the tepals and a yellow ovary are sought-after forms. I have some. However, is the yellow caused by a mineral deficiency or lack of light? I will be excited if they stabilize.

Galanthus nivalis yellow form

Galanthus nivalis - yellow form 

Galanthus elwesii var. monostictus flowers in November. The tepals look more like G. nivalis. This is in my alpine house till it bulks up. One of our members has G. elwesii Hiemalis Group which flowers outside in December.

Cultivation: Plant the bulbs as soon as possible in the early fall. They do not like drying out so first soak them in warm water for a few hours. Deciduous shade and woodsy soil is best though they will tolerate some sun and heavier soil in Southern Ontario. For the earliest flowers, plant in front of a south-facing basement window. The leaves are not attractive after flowering. They soon die down. Hosta and fern leaves hide these. Clumps of Hemerocallis planted on the south side of your snowdrops also make the leaves less obvious.

Propagation: Seed needs to be fresh sown outside and kept shaded and damp. Some will germinate the following spring. I have self-seeded clumps in the lawn. Divide large clumps after flowering “in the green” with the leaves still healthy. Replanting 5-6 bulbs together works best.

I would like a form with nearly all green flowers, also a better yellow and one with really green tips.

A must for snowdrop fanatics: Galanthus Group This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Contributed by Anna Leggatt

 

 

 

 

 

 

 

 

 

  1. Globularia repens - creeping globe daisy, dwarf globe flower and Globularia nana
  2. Roscoea cautleyoides - the Orchid Roscoea
  3. Clematis terniflora (sweet autumn clematis)
  4. Alyssoides utriculata - the Greek bladderpod

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