Growing Agastache from seed is a relatively easy and straightforward process. Whether you choose to sow the seeds in the spring or in the fall, this beautiful herbaceous plant can be easily established in your garden. I have personally grown Agastache from seed multiple times and have found it to be a rewarding and enjoyable experience.
One of the advantages of growing Agastache from seed is the flexibility it offers. You can choose to sow the seeds directly into the garden or start them indoors and transplant them later. Personally, I prefer direct seeding as it saves time and allows the seedlings to establish themselves in their permanent location right from the beginning.
To start Agastache seeds directly in the garden, prepare the soil by removing any weeds or debris and loosening it with a garden fork or tiller. Agastache prefers well-draining soil, so ensure that the soil is amended with organic matter such as compost or aged manure to improve its structure. This will also provide the young plants with essential nutrients.
Once the soil is prepared, sprinkle the Agastache seeds over the desired area. It’s important to note that Agastache seeds are very small, so it’s advisable to mix them with sand or fine soil to aid in even distribution. Lightly press the seeds into the soil, ensuring good seed-to-soil contact.
Agastache seeds require light for germination, so it’s essential not to bury them too deeply. A depth of around 1/8 inch (3mm) is sufficient, and a light covering of soil or vermiculite can be applied if desired. Water the area gently to keep the soil moist. Be careful not to overwater, as excessive moisture can lead to rotting of the seeds.
Once germination occurs, which typically takes around 7-14 days, thin the seedlings to provide adequate space for growth. Space them at least 12-18 inches (30-45cm) apart to allow for proper air circulation and prevent overcrowding. This will also ensure that each plant receives sufficient sunlight, which Agastache thrives on.
Agastache is a hardy plant that can tolerate a variety of conditions, including drought and heat. However, it does require regular watering, especially during dry spells. It’s important to keep the soil consistently moist, but not waterlogged, throughout the growing season. Mulching around the plants can help retain moisture and suppress weed growth.
Agastache is also relatively pest and disease resistant, making it a low-maintenance plant. However, like any garden plant, it is not completely immune to issues. Keep an eye out for common garden pests such as aphids or spider mites, and take appropriate action if necessary. Regularly inspect the plants for any signs of disease or stress, and promptly address any issues that arise.
In terms of care, Agastache benefits from occasional pruning to encourage bushier growth and prolong blooming. Deadheading spent flowers can also promote continuous flowering throughout the season. Additionally, dividing mature Agastache plants every few years can help rejuvenate them and prevent overcrowding.
Growing Agastache from seed is a relatively easy and rewarding process. By following these simple steps and providing the plant with the necessary care, you can enjoy the beauty and fragrance of Agastache in your garden. Whether you choose to sow the seeds directly in the garden or start them indoors, this versatile plant will thrive and add a touch of color and vibrancy to your outdoor space.
