Grow anise hyssop in full sun to partial shade. It tolerates a wide range of soils as long as there is good drainage. This plant has no significant pest problems but may develop root rot in wet soils or powdery mildew and leaf spots in humid climates.
Anise Hyssop prefers full sun but will tolerate part shade. It is hardy up to zone 5. Seeds will germinate better if cold stratified. Plant them 1′ to 1.5′ apart in well-drained soil.
Agastache (aka Anise Hyssop) is a tender perennial with aromatic leaves and colorful flower spikes all summer long. While traditional varieties have blue or purple colored flowers, newer varieties feature bold colors such as red and orange. In warm climates, it comes back consistently each year.
Anise hyssop is a perennial plant in the USDA Plant Hardiness Zones 4-8. It prefers well-drained soil in part sun to full sun. The plant grows from two to four feet tall. It should be noted that these plants will spread by rhizomes (underground, horizontal roots) and will easily self-seed in optimum growing conditions.
Water. Water newly planted Anise Hyssop weekly, if there is no rainfall, for the first four weeks. Water slowly and deeply, welcoming deep, spreading roots. Once plants are established, cease watering.
Anise hyssop will transplant easily at any age. When transplanting, place seedlings 6-12″ apart in rows 24-36″ apart. Direct seed: Sow shallowly, 1/4″ deep, one seed per inch in spring.
Anise Hyssop fares best in direct sunlight, so outdoor placement is optimal. However, this herb will also thrive indoors with a long-running light schedule of approximately 16 hours.
If you notice the leaves of Anise Hyssop turning yellow, there are a few possible causes. Some foliar diseases can cause leaves to yellow. But the most likely cause is root rot. Check the location for proper drainage.
Expect germination in 10-15 days. Seeds can also be sown outdoors during late spring. Outdoors, sow with barely any cover.
Divide the plants in spring, if desired. Anise hyssop doesn’t need regular division to remain healthy, but division is a great way to propagate the plant or reduce the size of the clumps. Dig up a portion of the clump, taking a generous section of roots with the division.
Dig an entire clump, or if the clump is large, use the point of a shovel to separate a smaller clump, leaving the main hyssop plant intact. Divide the hyssop into smaller sections, teasing the roots carefully apart with your fingers. … Plant the hyssop divisions in a sunny, well-drained spot in your garden.
Anise is perfectly safe for cats and dogs alike to ingest.
A: Anise hyssop (a type of agastache) is a cut-back-to-the-ground perennial. If it’s browned-out already from frost, you can go ahead and cut it now. It also won’t hurt to wait until end of winter and cut it back sometime before new growth begins. No need to add any extra mulch after you cut.
Snip off and discard the dead or damaged stems as needed during the growing season. Prune them off at the base, taking care not to accidentally cut or pinch the surrounding stems.
For abundant flowering, your Anise hyssop requires regular watering and continuously moist soil. Since it originates in lakeshores, you can’t expect your flower to be resistant to drought. When the plant doesn’t get enough water, you will see dropping their leaves and consequent wilting of the whole plant.
As a general rule, rabbits avoid plants with leaves that are rough, hairy, or highly fragrant. For instance, they don’t seem to like Anise Hyssop (Agastache foeniculum).
When taken by mouth: Anise is LIKELY SAFE for most adults when taken in amounts typically found in foods. Anise powder and oil are POSSIBLY SAFE when taken as medicine for up to 4 weeks.
Seizures: Hyssop oil is a known convulsant and should not be given to children or to people with seizure disorders.
Anise Hyssop (Agastache Foeniculum)
Not only is anise hyssop rich in nectar, but it also blooms for weeks and keeps several species of bees busy feeding. The honey from bees that forage on anise hyssop is very sweet.
Hyssop is quite drought tolerant, and loves full sun. It can handle very challenging growing conditions with grace. It’s intensely aromatic leaves and deep blue/purple flowers can be used like rosemary in cooking, or made into potent anti-viral and respiratory teas and medicines.
Slugs can be a real problem in cool, wet conditions. They are extremely voracious and when abundant they can devour an entire bed of seedlings in a night, or strip almost mature plants.
Agastache foeniculum, commonly known as anise hyssop, is an upright, clump-forming perennial of the mint family that is native to parts of the upper Midwest and Great Plains (Wisconsin to Ontario west to British Columbia and south to Colorado).
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