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Notes About :Gentiana

We used to say that all varieties listed here are fairly easy to grow, but as our selection of gentians is expanding, there are some more difficult species among them. To help you, we list the easy ones below. Generally, all like an average garden soil that drains, as is required by most rock garden plants.

TRUMPET GENTIAN- Gentiana acaulis – angustifolia - clusii - dinarica

You can encounter them easily (unlike Edelweiss) on hikes up in the Alps. Besides the Edelweiss, Trumpet Gentians are the most classic Swiss Alpine flower and shouldn't be missing in any rock garden (really) and are just as breathtaking in a border. The large, deep velvety-blue trumpets are plain irresistible. They also work excellent on steeper hills and can be used as erosion control.
Trumpet Gentians are all easy to grow. They like an average garden soil that drains in full sun for cooler climates and mostly sun to dappled shade in hotter ones. Contrary to some literature, they don't need regular watering and are drought tolerant once established.
Our selection can be overwhelming and several are much alike; so we have a few pointers for starters: Our two main varieties are ‘Holzmann’, our best re-bloomer and ‘Undulatifolia’ with some of the largest trumpets. To add a couple with distinct differences we recommend angustifolia-Hybrid (from Leach Botanical Garden) with its bright blue and dinarica ‘Montenegro’ with the darkest blue and wide, leathery foliage.
For us, we get the most blooms in full sun, despite some 100+ deg. F days. As far as growing them, it has been our experience that they prefer to be planted in the garden rather than in pots. They are not fond of potting media and need some plain "dirt". So far we haven't lost a single plant in the garden; in the pots, a different story. So if you do want to grow them in larger pots and planters, make sure to add 1/4 to 1/2 garden soil.
We add “Hybrid” to the acaulis/angustifolia selections since they are interbred with different related species. Even in the wild they naturally hybridize and are quite rare in a pure form of a species. This might be bad news for a purist but it makes them much more adaptable to different soil types and conditions.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2-3/8" 3 April-May - 3" $10.00  
-Ready in April 2016- A smaller, slow growing and slow multiplying selection with almost white flowers. They open in the palest blue and turn almost white. Just a few available for the collector.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2 3/8" 3 April-May - 3" $7.75  
A vigorous selection suitable as a groundcover in rock gardens with dark blue, upward facing trumpets. The main blooming season is spring but they can re-bloom throughout summer and fall. The leathery foliage is evergreen. For any good garden soil, needs light shade in hotter regions. 2 3/8" square - 3 3/4" deep pots. Blooming size.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 April-May - 3" $10.00  
A vigorous selection suitable as a groundcover in rock gardens with dark blue, upward facing trumpets. The main blooming season is spring but they can re-bloom throughout summer and fall. The leathery foliage is evergreen. For any good garden soil, needs light shade in hotter regions. 3 1/2" pots - about 1 1/2 to 2 times larger plants than our regular size. In years, 3 years old instead of 2.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2-3/8" 3 April-May - 3" $8.75  
For years we've been selling 'Undulatifolia' as the "best" trumpet gentian and we'll keep it that way. However, 'Maximus' is the "very best"; a tad larger flowers and more of them, at least in spring. This one reblooms as well in summer/fall, comparable to 'Undulatifolia'. For any good garden soil, needs light shade in hotter regions. 2 3/8" square - 3 3/4" deep pots - blooming size.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 April-May - 3" $11.00  
For years we've been selling 'Undulatifolia' as the "best" trumpet gentian and we'll keep it that way. However, 'Maximus' is the "very best"; a tad larger flowers and more of them, at least in spring. This one reblooms as well in summer/fall, comparable to 'Undulatifolia'. For any good garden soil, needs light shade in hotter regions.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2-3/8" 3 April-May - 3" $7.75   Sold Out
One of heaviest and most reliable bloomers in in the main season, with medium large flowers in dark blue, and also re-blooms well for us throughout summer and fall. For any good garden soil, needs light shade in hotter regions. 2 3/8" square - 3 3/4" deep pots - blooming size.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2-3/8" 3 April-May - 3" $8.75  
A rare light blue selection with large trumpets. The flowers come in different shades of blue depending on the season. The early bloom (here February/March) is a gorgeous pale blue, later (April/May - pictured) light blue and the re-bloom in summer is a mid blue. For any good garden soil, needs light shade in hotter regions. 2 3/8" square - 3 3/4" deep pots - blooming size.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2 3/8" 3 April-May - 3" $7.75  
According to J.Eschman the best trumpet gentian to grow, very adaptable. Extra large, intense velvet-blue, upward facing trumpets. The main blooming season is spring but they can re-bloom throughout summer and fall. The leathery foliage is evergreen. For any good garden soil, needs light shade in hotter regions. 2 3/8" square - 3 3/4" deep pots - blooming size.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 April-May - 3" $10.00  
According to J.Eschman the best trumpet gentian to grow, very adaptable. Extra large, intense velvet-blue, upward facing trumpets. The main blooming season is spring but they can re-bloom throughout summer and fall. The leathery foliage is evergreen. For any good garden soil, needs light shade in hotter regions. 3 1/2" pots - about 1 1/2 to 2 times larger plants than our regular size. In years, 3 years old instead of 2.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 Aug.-Oct. - 12-24" $8.50  
Native to many northern states from Massachusetts to the Dakotas down to Missouri. Despite the flowers never opening, the large, deep blue buds still make a colorful display. Plus, it's pure fun watching bumblebees (the body builder type) prying open the buds to get to the scrumptious inside. Easily grown in an average garden soil and even tolerates wet soils. Full sun to dappled shade in cooler climates; more shade in hotter ones.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2-3/8" 3 April-May - 3" $10.00  
I'm no botanist, but I do know that angustifolia means "narrow-leaved". This particular one at hand fits the description to the point. Grows rather slow and stays in tight clumps. For now we are offering seedlings, which will vary a bit.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2 3/8" 3 April-May - 3" $7.75  
Received as G. angustifolia, (Leach Bot. Garden) though it's obviously a hybrid. But what a bright color - I simply couldn't resist! A good grower, in fact the fastest grower of all we offer, suitable as a groundcover and ideal for steep slopes and erosion control. Blooms are large, upward facing trumpets in bright, deep blue. The main blooming season is spring but they can re-bloom throughout summer and fall. The leathery foliage is evergreen. For any good garden soil, needs light shade in hotter regions. 2 3/8" square - 3 3/4" deep pots.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 April-May - 3" $10.00  
Received as G. angustifolia, (Leach Bot. Garden) though it's obviously a hybrid. But what a bright color - I simply couldn't resist! A good grower, in fact the fastest grower of all we offer, suitable as a groundcover and ideal for steep slopes and erosion control. Blooms are large, upward facing trumpets in bright, deep blue. The main blooming season is spring but they can re-bloom throughout summer and fall. The leathery foliage is evergreen. For any good garden soil, needs light shade in hotter regions. 3 1/2" pots - about 1 1/2 to 2 times larger plants than our regular size. In years, 3 years old instead of 2.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 4 July-Sept. - 18-24" $8.50   Sold Out
A classic component for the English border, is easy to grow and long lived. Trumpet-shaped flowers are arranged on arching stems in the axils of the upper leaves. 3 1/2" pots - blooming size.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 4 July-Sept. - 18-24" $8.50   Sold Out
The pure white version of this classic English border component. Easy to grow and long lived. Trumpet-shaped flowers are arranged on arching stems in the axils of the upper leaves. Just a few.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 April-May - 2-3" $18.00   Sold Out
This rare selection has a most intriguing coloration. While the lobes are white, the throat and outside of the trumpet are purple infused. Acquired 2007 in Germany, we finally have a few to share, after 8 years! Gentiana clusii grow in very tight clumps and doesn't produce any rhizomes like the acaulis types. COULD be propagated by seed, but so far our plants have refused to set any. We've finally got hold of another clone and hope cross pollenating will do the trick. This would allow us to offer them at a more decent price.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2-3/8" 3 April-May - 3" $7.75  
Picked this one up at our regular gentian source in Switzerland in November of 2007. This was by far the darkest blue gentian, at that time and place. Back here in Oregon, in spring, they bloom in a ordinary dark gentian-blue (although there is nothing ordinary about gentian-blue). In fall the rebloom is noticeable darker than the orders, however. The leaves differ from other trumpet gentian types by being exceptionally leathery-shiny and quite large. As most others, good rebloomer and grower. 2 3/8" square - 3 3/4" deep pots - blooming size.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 April-May - 3" $10.00  
Picked this one up at our regular gentian source in Switzerland in November of 2007. This was by far the darkest blue gentian, at that time and place. Back here in Oregon, in spring, they bloom in a ordinary dark gentian-blue (although there is nothing ordinary about gentian-blue). In fall the rebloom is noticeable darker than the orders, however. The leaves differ from other trumpet gentian types by being exceptionally leathery-shiny and quite large. As most others, good rebloomer and grower. 3 1/2" pots - about 1 1/2 to 2 times larger plants than our regular size. In years, 3 years old instead of 2.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 July-Aug. - 6-10" $15.00   Sold Out
Hailing from China (NW Yunnan, Upper Burma) in open meadows, among granite rocks and snowfields in elevations from 11,000 to 16,000 feet! The flowers are arranged in clusters of 3-8 flowers, each about 1 1/2" across, with a cream base color, striped and dotted blue on the outside, the lobes on the inside are pale blue. Grows best in a cooler climate or higher elevation in moisture retentive soil. Very rare in cultivation and for the experienced collector only.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 4 Aug.-Sept. - 8-12" $8.50  
A beautiful species just for the narrow foliage alone, which densely clothes the relatively long stems in whorls. In fall, they take on golden-yellow tones. The large, electric blue flowers, arranged in clusters, are an amazing work of art: The white throat is purple spotted in rows, the spots extend into the blue lobes of the corolla (petals) but are yellowish to clear in color. At the crest the flowers are fringed. Easy to grow in an average, well drained garden soil and long-lived.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 4 Aug.-Oct. - 6-8" $7.50  
Clusters of bright blue flowers, often with white throats, on 8 to 12" long stems. For the rock garden in a well drained soil.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 4 June-Aug. - 6-16" $8.50  
This taller growing species can be encountered in the Rockies from lower rich meadows up to above the tree line. The large flowers are broad-goblet shaped and mid-blue. They are borne singly or in groups of up to 6 and open when the sun is out. Easy to grow in an average garden soil.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 4 June-Aug. - 8-12" $12.50   Sold Out
Native to China, found in higher elevations and is closely related to the US native G. algida. About 2" long tubular flowers are borne in clusters of 3-12, cream-colored, striped and highlighted from greenish-purple to blue. This makes the buds extremely attractive. Easy in regular, well drained garden soil.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
3 1/2" 3 July-Sept. - 4-6" $7.50  
One of the easiest and most rewarding gentians, loaded with 1½" long trumpets. This selection has an especially intense blue and a compact habit. For any good garden soil.

Pot Size Zone ? Bloom Season Exposure Height Price Quantity
2-3/8" 4 Sept.-Oct. - 4" $9.50  
The worlds first double gentian! And deep blue at that. Grows in mats of grassy foliage and produces bunches of double trumpet-flowers, striped on the outside. Relatively easy in acidic soil and summer moisture. They take full sun for us with occasional low 100s; for hotter climates afternoon shade is recommended.

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