Seeds for the World - GARDENS NORTH - Catalogue
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Genus starting with:   A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  R  S  T  U  V  W  X  Y  Z 
Searching Genus for T

A large genus of annual and perennial plants with aromatic leaves and daisylike flowers. Many species make excellent cut flowers as well as being good summer flowering plants for border or rock garden. If only familiar with the rampant common "tansy" read on.

TANACETUM macrophyllumSummer3420
Rayed Tansy90-120cm  Zone: 3
Native to central and eastern Europe to southern Russia. A stately border plant with greyish-green toothed foliage, soft as silk to the touch. Large corymbs of creamy-white flowers. Strong, stout stems make staking unnecessary. Often mistakenly sold as Achillea grandiflora or macrophylla. Soundly perennial. For ordinary soil in full sun to light shade.
Germination Instructions: Easy, warm germinator.
30 seeds  $3.75   

TANACETUM partheniumSummer3426
45cm  Zone: 3
The old-fashioned Feverfew. White daisies in summer. Full sun.
Germination Instructions: Easy, warm germinator.
100 seeds  $3.25   

TANACETUM parthenium (Double)3429
The double form of Feverfew, coming true from seed.
Germination Instructions: Easy, warm germinator.
50 seeds  $3.00   

A genus of summer flowering perennials grown for their scented, bold foliage and large flowers. Sun or shade.

TELEKIA speciosaSummer3434
90cm  Zone: 3
Handsome clumps of sturdy stems and gorgeous, bold foliage. Large lower leaves are heart shaped, the upper sharp-toothed. Each stem bears several large flower heads of shaggy, yellow daisies, blooming for many weeks in summer.
Germination Instructions: Easy, warm germinator.
30 seeds  $4.00   

One species native to western North America used as a groundcover in semi-shade. The foliage is similar to Heuchera (Alumroot).

TELLIMA grandifloraEarly Summer3435
Fringecups60cm  Zone: 3
Native from Alaska to California. Low rosette of hairy green leaves; erect stems with insignificant greenish-white flowers. Use as a groundcover in light to relatively deep shade. Will even tolerate a fair amount of dryness.
Germination Instructions: Easy, warm germinator.
50+ seeds  $4.00   

A genus of about 100 species of widely distributed plants. Elegant and stately, with feathery panicles of flowers and ferny foliage. Easily grown under garden conditions ranging from well-drained loamy soil to low wet areas. For full sun or part shade.

THALICTRUM dioicumEarly Spring3453
Early Meadowrue30-60cm  Zone: 3
Native to eastern and central North America growing in open woods, north-facing slopes, ledges, rocky areas, ravines, and near limestone outcrops. This is a compact and very early Meadowrue with lacy, fine-textured, grey-green foliage. The delicate, drooping greenish-white flowers, often with a purplish tinge are small but elegant, with conspicuous yellow stamens. Perfect for the woodland garden. Seed wild collected in Ontario.
Germination Instructions: GA-3 greatly enhances the germination of all Thalictrum. Without it, cold treatment is required.
25 seeds  $4.00   

THALICTRUM rochebrunianumSummer3445
1m  Zone: 4
A beautiful species from Japan. Plant glabrous overall, leaves almost leathery. Inflorescence is an open panicle of violet flowers with very long stamens. For semi-shade to shade in cool, moisture-retentive, humusy soil.
Germination Instructions: GA-3 recommended for germination.
20 seeds  $4.00   

20 species of Lupin-like plants, with fan-shaped leaves and primarily yellow pealike flowers. Grow in full sun or part shade in well-drained soil.

THERMOPSIS villosa (caroliniana) New Summer3470
Carolina Lupineto 150cm  Zone: 3
Has been referred to as one of our most overlooked garden plants and the tallest thermopsis. Blue-green ovate foliage and canary-yellow pea-like flowers in erect racemes.
Germination Instructions: Sandpapering of seed essential.
30 seeds  $4.00   

About 6 species of low-growing, spring-flowering plants with 5 species native to North America. The common name is derived from the foamy white flowers. One of the best groundcovers for partial shade; lovely foliage and delicate white flowers in spring. For rich, well-drained, moisture retentive woodland soil in part shade.

TIARELLA cordifoliaLate Spring3478
Foamflower30cm  Zone: 3
Native to eastern North America. Green foliage and racemes of delicate white flowers in spring. Ideally, for a shaded site in good moisture-retentive soil; however it will grow happily in dry shade, as it does in our native woodlands. A beautiful and tough groundcover, spreading by runners. Wild collected in Ontario.
Germination Instructions: Seed is short lived and has been frozen since harvest to preserve viability, so that it may be sent out safely all seed season.
50 seeds  $4.00   

TIARELLA wherryi New Spring through Mid-Summer3479
Wherry's Foamflower30cm  Zone: 4
It's been a while since we carried this excellent, clumping species native of the southern USA. The lovely, emerald green foliage, turns red in the fall and looks clean and tidy in the woodland garden all season. Racemes of white blushed pink flowers are held well above the leaves and bloom continues over a long period, spring to mid-summer. Only a few packs this year.
Germination Instructions: Seed has been frozen to retain viability. Cold treatment required.
30 seeds  $4.00   

About 20 species of plants native to North America. The longer lived species have thick, deep taproots and are low plants with rosettes of linear foliage and daisy-like flower heads, usually white, rose to violet. Most flower in spring to early summer. For very well-drained, gravelly soil in full sun.

TOWNSENDIA leptotes New Spring3496
Slender Townsend Daisy1-3cm  Zone: 3
A beautiful species native to alpine regions of western North America. Above narrow, linear foliage, masses of stemless white daisies in spring.

Photograph: Cohan Fulford
Germination Instructions: Easy, warm germinator.
20 seeds  $4.25   

TOWNSENDIA parryi New Spring3493
10cm  Zone: 3
Native to western North America. Perennial, biennial or monocarpic, depending on where you live. Prostrate rosette of foliage with spoon-shaped leaves. Good deeply-coloured violet-blue daisies in spring. For well-drained soil in full sun. Will self-sow.
Germination Instructions: Easy, warm germinator.
20 seeds  $4.00   Sorry...Sold Out

A genus of four perennials with slender rhizomes and leaves in whorls.

TRIENTALIS borealisSpring3511
Star Flower20cm  Zone: 2
Native across Canada and southward to the northern USA this member of the Primula family is found growing in rich, cool woods. Starflower is a unique combination of white, star-like flowers and a single whorl of shiny, pointed leaves. "Discriminating people, when they first find its elegant silvery flower growing in the woods beside the violet, call it May-star." (Susan Cooper, 1850). Seed wild collected in Ontario.
Germination Instructions: Outdoor treatment recommended.
100 seeds  $4.25   

This genus includes 30-50 species primarily distributed in Asia and North America. Mostly spring blooming and, with a few exceptions, deciduous woodland plants. They have underground rhizomes; some species develop a many-stemmed clump, others a dense colony. Whorls of foliage and solitary flowers in white, yellow, green, brown, rose or purple, occasionally bicoloured. After flowering, a fleshy berry is formed. Most species are long lived ornamentals. For optimum growth give them a deep, moist soil in bright, half or fully shaded conditions. They will, however grow in less than ideal conditions.

TRILLIUM cernuum (Moist Packed) New Late Spring-Early Summer3518
Nodding Trillium25-50cm  Zone: 2
Native to central and north-eastern North America growing in moist, usually acidic woods. Under a whorl of three ovate leaves, nodding three-petalled white to pale-pink flowers, with distinctive purple stamens. Noticeable green sepals are spaced between the petals, which are sharply recurved. Beautiful pink seed pods follow. This very hardy Trillium occurs as far north as James Bay but is not widespread in our area. Seed wild collected in Ontario.
Germination Instructions: Seed is ephemeral and sent out moist packed from fresh harvest each year.
30 seeds  $5.00   

TRILLIUM erectum (Moist Packed) New Late Spring3514
Purple Trillium20-40cm  Zone: 3
One of the most common Trilliums growing in rich woods throughout north eastern North America. The solitary, nodding flower rises on a stalk above a whorl of 3 broadly ovate, diamond-shaped leaves. The flowers are 2.5" wide with 3 petals, maroon or reddish-brown and 3 green sepals. Fruit is an oval, reddish berry. Seed wild collected in Ontario.
Germination Instructions: Seed is moist packed to preserve viability.
30 seeds  $5.00   Sorry...Sold Out

TRILLIUM undulatum (Moist Packed) New Late Spring3516
Painted Trillium20-50cm  Zone: 4
Native to moist, acid woods from Manitoba to New England and south. The erect, stalked flowers have an inverted pink V at the base of each white, wavy-edged petal. Bluish-green and wavy foliage. Seed wild collected in Ontario. Limited this year.
Germination Instructions: Seed is moist-packed to preserve viability.
30 seeds  $5.00   Sorry...Sold Out


TRIOSTEUM aurantiacum (Moist Packed)Summer3526
Wild Coffee,Orange-Fruited Horse Gentian120cm  Zone: 4
Native to rocky areas and rich woods of eastern North America. Large, opposite, hairy leaves. Inconspicuous red flowers form in the leaf axils in mid spring, followed by charming fruit, which cannot be likened to anything but miniature orange-yellow lemons. Wild collected in Ontario. Limited this season.
Germination Instructions: Cold treatment required.
12 seeds  $5.00   

TRIOSTEUM pinnatifidum (Moist Packed) New Summer3525
40cm  Zone: 3-4
A rare herbaceous member of the Honeysuckle family almost never seen in cultivation. I quote from the Heronswood catalogue.... "this plant is beyond remarkable, and mindboggling to me that it has not yet been further grown and known. Deeply lobed, felted leaves, reminiscent of Hydrangea quercifolia, and small greenish flowers followed by large white fruit with a soft blush of rosy pink, on herbaceous stems to 18", making large, robust plants over time. Partial shade and any soil."
Germination Instructions: Seed is moist packed. Cold treatment required on receipt.
15 seeds  $5.00   

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