Astilbe x arendsii
Fern-like lacy plumes in red, white, rose and lilac. Great for shaded containers This is another fine variety perfect for the border or for use as a cut flower, it produces beautiful and spectacular plumes. Due to their graceful height they are often placed in areas of the garden that will use their height to advantage, such as a bordering plant or to line the side of a fence. For optimum growth, you should plant Astilbe in average soil in an area that gets good drainage. It's important that the soil has good drainage because excessively wet soil could cause the roots to rot away. These plants are not very resilient against excessive heat or sunlight, therefore the area that you plant your Astilbe in should ideally receive partial shade. Zones 4-8. Height 24-36 inches tall. Deer resistant.
It will not flower as well in deep shade, and full sun will be tolerated in cool climates if the plants are kept well watered.
How To Grow Astilbes From Seeds
Astilbe flower seeds are usually sown indoors in early spring and transplanted outside when the weather is warmer. Soak seeds for 24 hours.
Use a loose, soft soil mix, and plant the Astilbe seeds on the surface, pressing them into the soil.Do not Cover.
Make sure that the soil drains well and is able to keep the flower seeds moist, but not wet, at all times.
For the best results, add in a little fertilizer that has a high concentration of nitrogen. Keep the Astilbe plants inside until the seedlings reach about 2 inches in height. Transplant after last frost.
Sow the seed in a tray or in pots. Do not cover seeds. light is required for germination.
Keep Moist until germination.
Maintain a temperature in the planting medium at 65°-70° F until germination,which takes about 28-35 days.
Do not expect early germination- they are slow to decide if they want to grow up.