Astilbe flowers make wonderful container plants and can be used to create a floral focal points in any container it is grown in. Planting astilbes in containers is easy and even a novice gardener can do it. So, here is a handy how to guide on how to grow at astilbe flowers in a container.
Step 1 - Purchase Astilbe Seeds
Visit the garden section of your local home improvement store or your local nursery and purchase the type of astilbe seeds for the variety you want to grow in your container.
Step 2 - Prepare the Astilbe Seeds
To help improve germination of your astilbe seeds, some lemon water for about 24 hours before planting. Make sure to wait for warm weather before planting your astible seeds.
Step 3 - Choose a Location for the Container
Astilbe flowers usually grow best in shaded areas, and don't do very well at all in direct sunlight. So position your container in an area that has plenty of shade. A covered patio or underneath a large tree is an excellent place for a container that will have astilbes.
Step 4 - Prepare the Soil
Astilbe flowers require highly aerated and loose soil. Use generous quantities of peat moss or humus and add it to your soil along with a light application of super phosphate in the soil. Depending on how large a container is, use a proportionate amount of an all-purpose fertilizer that has a lot of nitrogen in it.
Step 5 - Plant the Astilbe Seeds
When planting your astilbe seeds, you only need to bury them just slightly under the surface of your soil. While the seeds need to be completely covered, you never want to plant your astilbe seeds more than an inch deep in the soil. Also, make sure not to place the astilbe seeds too close together as astilbe flowers can suffer from powdery mildew disease or other fungal diseases when overcrowded. Place the seeds about 16 to 30 inches apart.
Step 6 - Apply Fertilizer
Apply a healthy application of your high nitrogen content all-purpose fertilizer.
Step 7 – Add Organic Mulch
Add 1 or 2 inches of organic mulch to the top of the soil in your container. Make sure to leave enough room around the areas were your astilbe seeds are so that they can break through the soil and grow straight and upright.
Step 8 - Initial Watering
You should thoroughly water the astilbe seeds but make sure not to soak the soil too much. Add water to your container in increments and make sure that it is adequately absorbed lore before continuing to add more. Water the plants regularly about every 2 weeks, or once a week in particularly dry periods.
Step 8 - Continue Fertilizing
Continue applications of all-purpose fertilizer every 3 or 4 weeks to promote faster growth and healthy root systems.