Blue Throatwort, Throatwort
Tough and undemanding, Trachelium caeruleum (Throatwort) is an upright perennial, often grown as an annual, forming a clump of stems clothed with sharply toothed, lance-shaped, dark green leaves. Blooming over a long summer season, small, slightly fragrant, violet-blue flowers held in large domed clusters, 6 in. across (15 cm), appear above the foliage. Rich in nectar, they attract birds and butterflies to the garden and make good cut flowers. Evergreen in mild winter climates.
| Hardiness |
9 - 13 |
|---|---|
| Heat Zones |
1 - 12 |
| Climate Zones | 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Perennials |
| Plant Family | Campanulaceae |
| Exposure | Full Sun |
| Season of Interest |
Summer (Early, Mid, Late) |
| Height |
2' - 3' (60cm - 90cm) |
| Spread |
2' - 3' (60cm - 90cm) |
| Spacing |
30" - 36" (80cm - 90cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Cut Flowers, Fragrant, Plant of Merit, Showy |
| Attracts | Birds, Butterflies |
| Garden Uses | Beds And Borders, Patio And Containers, Wall-Side Borders |
| Garden Styles | City and Courtyard, Informal and Cottage |
| Hardiness |
9 - 13 |
|---|---|
| Heat Zones |
1 - 12 |
| Climate Zones | 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Perennials |
| Plant Family | Campanulaceae |
| Exposure | Full Sun |
| Season of Interest |
Summer (Early, Mid, Late) |
| Height |
2' - 3' (60cm - 90cm) |
| Spread |
2' - 3' (60cm - 90cm) |
| Spacing |
30" - 36" (80cm - 90cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Cut Flowers, Fragrant, Plant of Merit, Showy |
| Attracts | Birds, Butterflies |
| Garden Uses | Beds And Borders, Patio And Containers, Wall-Side Borders |
| Garden Styles | City and Courtyard, Informal and Cottage |
How many Trachelium caeruleum (Throatwort) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Trachelium caeruleum (Throatwort) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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