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Dracocephalum ruyschiana |
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Common name |
dragonhead |
Family |
lamiaceae |
Life cycle |
perennial (Z5-8) |
Flowers |
blue (spring-summer) |
Size |
12" |
Light |
full sun-part shade |
Cultural notes |
well-drained garden soil |
From seed |
germinates at room temperature; exposure to light increases germination detailed seed-starting info below
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Seed ripens | early August |
Refined little plant with hooded blue flowers.
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This plant used to grow in our garden, but it slipped away... About my plant portraits
PlantLinks to other web pages about Dracocephalum ruyschiana
- Seed from HPS/MAG '01/'02 exchange. Baggy 70F (11%G, 10-20d)
- Same seed as above. Baggy 70F (10%G, 9d). Exposure to light afterwards did not increase germination
- Seed from '03 garden. Baggy 70F (40%G, 7-19d); to light exposure after 30d (+12%G, 3-9d)
- Seed from '04 garden. Baggy 70F with light (20%G, 21-30d) - 70F no light (+25%G, 9-14d)
- Seed from '06 garden. Baggy 70F (11d; 7%G, 5-11d) - 70F with light (30d; 3%G, 3d)
- Seed from '07 garden. Baggy 70F (67%G, 5-31d)
- Seed from HPS/MAG '09/'10 exchange. Baggy 70F (9d; 7%G, 5d) - 70F with light (18d; 14%G, 6d)
- Seed from NARGS '11/'12 exchange. Baggy 70F (33%G, 15-46d)
- Seed from HPS/MAG '13/'14 exchange. Baggy 70F (3%G, 23d)
Light sensitivity still not clear. Always more difficult to germinate than the annual D. moldavicum.
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