|PHYSOSTEGIA virginiana - Obedient Plant|
Lamiaceae, native to North America.
Germination: Best sown indoors at 60-75° to a depth of 4 times the size of the seed. Expect germination in 20-25 days. Seeds can also be sown outdoors in spring or summer, up to two months before first frost. Seeds are very small.
Growth: Transplant when there are at least two sets of true leaves. Space 15-18 inches apart in full sun or part shade in a slightly acidic, rich, moist, well-drained soil. Plants vigorously spread by rhizomes and they will need dividing in winter or early spring before new growth begins. Staking is often necessary to keep flopping stems upright. A light, dry soil will check the plants from spreading too much and will induce stiffer, stronger stems.
Appearance and Use: Planted in borders and wildflower gardens; the flowers cut well for fresh use. The plants grow upright from 2-4 feet tall and vigorously spread. Individual flowers are 1 inch, snapdragon-like, and appear in 12-18 inch tall spikes in late summer and fall. Flower color can be white, purple, or rose. From the square stems arise the dark green, willow-like leaves.
NASA Seeds in Space
"If you are looking for a challenge with great rewards, if you love to garden and do not relish the routine, if you can accept heartaches and failures, and if you can burst with pride at success, then choose a garden by the sea," Dr. Ed Givhan, Flowers for South Alabama Gardens.