Seeds for the World - GARDENS NORTH - Catalogue
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Catalogue Genus starting with:   A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  R  S  T  V  W  X  Y  Z 
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GA3 - Gibberellic Acid (100mg)1638
Contains one 100mg packet of 90% pure GA-3, each packet being sufficient to treat about 50-100 packets of seed.

Easy to grow North American natives that brighten the late summer and fall garden over a long bloom period. Drought tolerant, preferring lean soil and full sun.

GAILLARDIA aristataSummer-Fall1640
60-90cm  Zone: 2
This is a very hardy prairie native with showy brilliant red daisy flowers with yellow rims, much superior to most of the hybrids in the marketplace. Long blooming and excellent cut flower; this in fact promotes more bloom. For full sun in well-drained, preferably poor soil. Wonderful if allowed to form a dense colony.

Photograph: Cohan Fulford
Germination Instructions: Easy, warm germinator.
20 seeds  $3.50   

GAILLARDIA Mostly Bicolors1644
A mix of long-blooming Gaillardias in shades of red and yellow. Open pollinated.
Germination Instructions: Easy, warm germinator.
30 seeds  $3.50   

GAILLARDIA Mostly RedSummer to Fall1641
60-90cm  Zone: 2
Large, showy mostly red to deep wine coloured flowers blooming over an extended period from summer into early fall. Open pollinated.
Germination Instructions: Easy, warm germinator.
20 seeds  $3.50   

GAILLARDIA Mostly Yellow1643
A mix of mostly yellows blooming almost the entire summer.
Germination Instructions: Easy, warm germinator.
30 seeds  $3.50   

A genus of 170 evergreen shrubs, varying from tall bushes to ground-hugging shrublets. Most are early summer flowering with elegant hanging waxy bell flowers followed by showy bright berrylike fruits. Prefer rather moist, acid soil in shade. Named for Jean Francois Gaultier (1708- 1756), a Quebec physician and botanist.

GAULTHERIA procumbensSpring1651
Wintergreen, Tea Berry10cm  Zone: 2
A small evergreen shrublet with thick, toothed, glossy foliage with a circumboreal distribution. Normally grows in open shade in dry or moist sites in acid soil. Elegant white, bell-like flowers, in umbels. Fruit is a round berry, red at maturity. A tea is made of the leaves and the plant is the source of "wintergreen oil" which was used as a flavoring in candies, chewing gum, and some medicine. The berries are edible and have a strong wintergreen taste. They can be cooked into pies or eaten raw. Seed wild collected in Ontario.
Germination Instructions: Easy, warm germinator.
50 seeds  $4.25   

GAULTHERIA shallonLate Spring1652
Salal1m  Zone: 5/6
Native of western North America with leathery, shiny, dark green foliage. Urn-shaped pink to white flowers followed by purple to black berries, often used in jellies. Common in a variety of habitats, from bogs to dry woods and well-drained mountain slopes. Seed collected in BC.
Germination Instructions: Easy, warm germinator.
30 seeds  $4.25   

A large genus of 400 species, the majority of which are low-growing alpines. Most are notable for their strong blue flowers. Source: Halda, The Genus Gentiana

GENTIANA andrewsiiLate Summer1660
Closed or Bottle Gentian30cm  Zone: 3
A North American native found throughout Ontario. Species name derived from the fact that the club-shaped, dark-blue flowers do not open, but remain in a blue bud. The flowers are borne in the leaf axils and in clusters at the top of the stem. Although unopen, they are distinctive, elegant and beautiful. Dark green lance-shaped leaves. Seed wild collected in Ontario.
Germination Instructions: Cold treatment required.
100+ seeds  $4.25   

GENTIANA clausa albaAugust-September1684
Blind Gentian30-60cm  Zone: 4
Native to Ontario and Quebec in Canada, growing in moist meadows, prairies and open woods in full sun to partial shade. This species is closely related to G. andrewsii, but accepted as a distinct species in Vascan. In G. clausa the petals remain closed at the tip with those fringes hidden by the closed tip. In the species G. andrewsii the fringes of the flower lobes are longer than the petals and thus are visible at the tip of the closed flower. Hmmm. And there you have it. This is the pretty white form of the species. Open pollinated. Photograph: Mark McDonough- Used with permission.
Germination Instructions: Cold treatment required.
50 seeds  $4.25   

GENTIANA lutea New Summer1662
Great Yellow Gentian90-150cm  Zone: 3
From the mountains of Europe. Extremely handsome plant for border or woodland with yellow wheel-like flowers in dense false whorls or clusters up the tall stems. The foliage is almost as spectacular, leaves are large (30cm), elliptic with prominent, curved veins, almost pinched, and bluish-green. Rootstock becomes as thick as an arm. Has medicinal properties; also used to flavor vermouth and to produce gentian schnapps. A robust and splendid gentian for moist, well-drained soil in light shade.
Germination Instructions: Best provided with outdoor cold treatment over winter.
30 seeds  $4.25   

GENTIANA tibetica New Late Summer1673
Tibetan Gentian, Qin Jiao30-60cm  Zone: 4
A tallish gentian from the Himalayas, growing in meadows and thickets. Above broad, shiny and distinctly veined dark green foliage, clusters of creamy-white to greenish flowers in late summer.
Germination Instructions: Easy, warm germinator.
30 seeds  $4.00   

GENTIANA trifloraEarly Fall1664
60cm  Zone: 3
Native to eastern Siberia, Korea and Japan, where it grows in alpine meadows. This is a beautiful species used in the cut-flower trade in Japan, producing, in the fall, a supply of long-stemmed, long-lasting flowers with deep-blue blossoms.
Germination Instructions: Cold treatment required.
30 seeds  $4.25   

25 species of annual or biennial plants, formerly classified as Gentians with blue, fringed flowers and primarily native to North America.

GENTIANOPSIS crinita New Fall1686
Fringed Gentian30-45cm  Zone: 3
One of our most beautiful natives, found in eastern and midwestern North America. This species has narrow, opposite leaves and striking fringed blue flowers, facing the sky, opening in sun and closing at night or on overcast days. In the wild grows in moist thickets and meadows and on seepage banks or the edges of woodland, usually in full sun. Seed wild collected in Ontario. Very limited.
Germination Instructions: Cold treatment required.
30+ seeds  $4.50   Sorry...Sold Out

Not to be confused with the annual geraniums (Pelargoniums.) Hardy geraniums comprise a large genus of over 400 species widely distributed over the temperate regions of the world. They are valuable as groundcovers, in the border or as accent plants. Many are long-flowering and will rebloom. Derive their common name from the Greek geranos, "crane" in reference to their beak-like seed heads. Very easy plants: satisfied with ordinary soil, sun or part shade and are essentially free of pests and diseases.

GERANIUM maculatumEarly Spring1688
60cm  Zone: 3
Found throughout eastern North America in woods, thickets and meadows. This is an outstanding and beautiful hardy Geranium with showy lavender flowers in loose clusters above deeply lobed leaves. Best in light shade in the woodland garden. Tolerates dry conditions and is often the first geranium to bloom in the garden in spring. Wild collected in Ontario.
Germination Instructions: Outdoor treatment over winter recommended.
15 seeds  $4.25   

GERANIUM nodosumAll Season1702
30-45cm  Zone: 4
A wonderful species from the forests in the mountains of Europe. It has the very fine habit of blooming the entire gardening season. Flowers are relatively large and a soft lilac-pink. Will self sow to form a wonderful low groundcover for the woodland garden that will still be blooming when the snow begins falling.
Germination Instructions: Cold treatment recommended.
15 seeds  $4.25   

GERANIUM renardii New Late Spring1710
Renard's Geranium30cm  Zone: 3
Native to the Caucasus, growing in rocky places. This species is at its best in well-drained soil in full sun. Makes a small tidy clump of beautiful thick, wrinkled, velvety foliage that looks wonderful all season. Flowers are white, flushed blue, etched with fine deep-violet stripes. A Royal Horticultural Society's coveted Award of Garden Merit.
Germination Instructions: Easy, warm germinator
15 seeds  $4.25   Sorry...Sold Out

50 species of clump-forming plants valued for their handsome foliage and cheerful 5-petalled flowers. Requires good drainage, moisture and protection from full sun.

GEUM triflorumSpring1714
Prairie Smoke10-45cm  Zone: 1
Entire plant is silky with attractive, deeply cut leaves and cupped, nodding pink-purple flowers. Produces unmistakable feathery silver and pink seedheads that look like smoke when blowing in the wind. Seed wild collected in Ontario.
Germination Instructions: Easy, warm germinator.
20 seeds  $4.00   Sorry...Sold Out

A completely overlooked genus. Contains two species of woodland plants native to North America. Beautifully ornamental, growing best in moist areas in part sun to light shade.

GILLENIA stipulataEarly Summer1721
American Ipecac90cm  Zone: 3
Native to central and eastern USA, growing in dry, rocky, open woods. Upright and clump-forming with deeply cut, trifoliate, toothed, medium-green leaves turning bronzish red in autumn. Wiry stems above the foliage hold delicate, white (sometimes tinged pink), star-like flowers in early summer. Bloom is for about 6 weeks. Grows in similar, but drier habitats than it's better-known cousin G. trifoliata.
Germination Instructions: Cold treatment required.
20 seeds  $4.25   

GILLENIA trifoliataSummer1720
90cm  Zone: 3
Native to eastern North America and traditionally used for medicinal purposes. This graceful perennial is strangely absent in most gardens. Leaves are arranged in threes along wiry stems topped by loose panicles of white flowers emerging from tubular wine-coloured sepals. Flowers are produced so freely as to appear, from a distance, like foam or "clouds of butterflies."
Germination Instructions: Cold treatment required.
20 seeds  $4.25   Sorry...Sold Out

A genus best known for barely hardy perennials with swordlike leaves and showy flowers. The majority of tender species come from Africa. However, there exists a small race of hardy Glads hailing from Europe through the Near East, fairly rare in the trade, but well worth growing.

GLADIOLUS imbricatusEarly Summer1723
60cm  Zone: 3
Native from Europe to the Caucasus and Turkey. An absolutely hardy species of Gladiolus with lovely purplish-red flowers. Occurs naturally in fertile, wet meadows. For a sunny spot in rich, well drained soil, moist in spring.
Germination Instructions: Cold treatment required.
30 seeds  $4.25   

Glassine envelopes are perfect for seed saving and sharing. Envelope measures 2.25" x 3.5", open on the short end, with a folding flap.



See the Gardens North Facebook page at

for a photo and descriptive method of shortening the growing process of Glaucidium with the use of GA-3. This effectively saves one year in the raising of the plants to maturity from seed.

GLAUCIDIUM palmatumSpring1735
60cm  Zone: 3
An exquisite Japanese woodlander always in demand, always lusted after, but rarely available. Topping palmate foliage are large open-faced lilac-pink flowers in spring. This extremely hardy and beautiful plant is the ultimate in elegance for the shaded garden. Seed has been frozen to preserve viability.
Germination Instructions: Germination occurs over an extended period at warm.
15 seeds  $4.25   Sorry...Sold Out

About 25 species of plants with spectacular blue-gray foliage and poppy-like flowers. Particularly suitable for xeric gardens. Full sun, well-drained soil.

GLAUCIUM flavumAll Season1737
Yellow Horned Poppy30-60cm  Zone: 4
Native to the European seacoast. A voluptuous mound of dissected, intensely silver foliage. Yellow poppies for most of the summer. This tender perennial is Z7 hardy, but self sows nicely, always coming up exactly where it was the year previous and reaching flowering size each season. We therefore come to think of it as a permanent part of the garden.
Germination Instructions: Cold treatment required.
30 seeds  $3.75   

A small genus of aquatic or marsh grasses with creeping rhizomes and reed-like stems.

GLYCERIA canadensisEarly Summer1745
Rattlesnake Mannagrass60-90cm  Zone: 3
Native to North America, a particularly lovely and graceful rhizomatous species for a moist to wet area. The narrow, green foliage is topped by long, nodding flower stems carrying distinct spikelets that progress from purplish at the flowering stage to green then to an aged wheat color. Seed wild collected in Ontario.
Germination Instructions: Cold treatment recommended.
50 seeds  $3.75   

Large genus with only a few species in general cultivation. Noted for their light masses of dainty flowers. Well drained soil in full sun.

GYPSOPHILA repens roseaSummer1756
10cm  Zone: 2
A small, drought-tolerant species with grey-green foliage bearing masses of small starry pink flowers in summer. Excellent for rock gardens or cascading over walls, as well as for edging or in mixed containers.
Germination Instructions: Easy, warm germinator.
30+ seeds  $3.00   Sorry...Sold Out

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