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The Daily Insight

Are anise hyssop invasive

Author

Mia Kelly

Published Feb 21, 2026

Anise Hyssop is not invasive, but will spread by self-seeding locally. I’ve been growing Anise Hyssop for several years. I’ve had my plants expand in size and self-seed, but I’ve not had them spread via rhizomes.

Does anise hyssop reseed?

Established anise hyssop reseeds freely, giving you plenty of volunteer plants to share with friends or transplant to other places in your garden.

What does anise hyssop attract?

The flowers are attractive to many pollinators including bees (L), butterflies (C) and beetles (R). Anise hyssop combines well with many native perennials, such as bee balm. Anise hyssop contrasts well with purple-foliaged plants.

Does Agastache spread?

Agastache is a rampant self-sowing plant. Don’t be surprised to see many new seedlings around old plants in spring. Luckily, these seedlings transplant well and can be moved around the garden or weeded out.

Is anise hyssop aggressive?

Anise hyssop is in the mint family and will self-seed. However, it rarely becomes aggressive and doesn’t tend to spread anywhere near as much as what most of us think of when someone says “mint.” Hyssop can be planted from seed or purchased as plants and transplanted into the garden.

Does anise hyssop like sun or shade?

Anise hyssop is easy to grow in either full sun or partial shade, and is not fussy about soil or moisture, though it does need decently-drained soil. Once it’s established, it is drought tolerant — a trait that’s becoming more and more important. Despite its height — 2 to 4 feet tall — it usually needs no staking.

What is the difference between hyssop and anise hyssop?

Anise hyssop (Agastache foeniculum) and true hyssop flowers appear similar and even taste similar, but they come from different roots. … Anise is native to North America and tends to be more drought resistant. The real reason to assure that your hyssop is true hyssop is that it has medicinal benefits that anise does not.

Is anise hyssop easy to grow from seed?

Anise Hyssop can be grown from seed, starting it out in rock wool and then transporting the seedlings as you would with any other Tower Garden-friendly green. The seeds typically germinate in 1–4 weeks and do best in cold, moist temperatures with plenty of sun.

How long does it take anise hyssop to grow?

Growing Guidelines: Plant them 1′ to 1.5′ apart in well-drained soil. They require light to germinate, so barely cover them. The seedlings will emerge in 7-14 days. Anise Hyssop blooms in the second year.

Can you divide hyssop?

Use a shovel or a garden fork to dig a clump of hyssop. 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.

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What zone does hyssop grow in?

It’s a native plant suited to gardens in USDA Hardiness Zones 4 to 9.

Does anise hyssop attract butterflies?

The blooms are pretty spikes of purple that grow longer as the plant blooms for a few weeks time. That’s a nice thing about anise hyssop in that the blooms are long lasting. Anise Hyssop in full bloom will attract bees and butterflies. Bees and butterflies are attracted to the flowers like crazy.

Is anise hyssop a perennial?

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.

Can you eat anise hyssop?

Culinary. Both the flowers and leaves of Anise-Hyssop are edible. The leaves have a pleasant mild licorice/anise flavor while the flowers add a hint of floral sweetness. … Fresh leaves and flowers are also excellent in salads, with fruit, in cold drinks, in jellies, or used as an attractive edible garnish.

Is Mexican hyssop invasive?

It’s pretty invasive but easy to pull out where you don’t want it. I originally one in what I called the butterfly garden in a corner of the yard but turned that area into a veggie garden with five raised beds and the hyssop still comes back every year in those beds. Like I said, it’s easy to pull out.

Is licorice mint invasive?

This bushy perennial herb reaches 48 inches tall spreading 18 inches wide. … This herb is not invasive like true mint varieties and attracts bees, butterflies and hummingbirds. Korean licorice mint seeds germinate well indoors with just a little care.

How long does anise hyssop bloom?

Bloom time: Anise hyssop blooms from summer to fall. Leaves: Anise hyssop has rich green leaves (nearly white underneath). Leaves are broadly oval and pointed to 3 inches long; they are sharply toothed with a quilted surface.

Do you deadhead anise hyssop?

Overall, Anise Hyssop does not need much attention once it’s been established. To encourage blooming and prevent seed heads, deadhead any spent flowers. A light trimming might help keep the plant looking its best, too.

Is anise hyssop a host plant?

•Host Plant•Attracts Butterflies

Will hyssop survive the winter?

Cutting back anise hyssop in late winter will allow the fresh new stems to come up unimpeded. … In most regions of North America, anise hyssop will brown and die back for winter. You may choose to leave it just as it is with the addition of a bit more mulch around the root zone, and no harm will come to this hardy plant.

Is bee balm invasive?

Bee balm does wander around, starting new plants from underground stems. But it is not really invasive. A new plant starting where it is not wanted is easily pulled out since its roots are shallow.

How do you propagate hyssop?

Propagate by seed, cuttings, division or separation – Divide plants in spring or fall. Sow seeds in spring in a light, dry warm soil in full sun. Hyssop will self sow readily under favorable conditions. For stronger plants, sow in a cold frame in the spring, where they will germinate quickly.

How big does hyssop grow?

Plants grow up to 2 ft. tall and attract bees, butterflies and hummingbirds.

How far apart should I plant anise hyssop?

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. Thin to 6-12″ apart.

Does anise hyssop need cold stratification?

To break dormancy, this seed needs stratification, a short period of cold moisture. Mix the seed with moist sand and store in the refrigerator for 30 days before planting. You can also direct sow unstratified seed on the surface of the soil in the fall for germination in the spring.

Is Agastache the same as anise hyssop?

Agastache foeniculum (blue giant hyssop; syn. Agastache anethiodora (Nutt.) Britton), commonly called anise hyssop, blue giant hyssop, Fragrant giant hyssop, or the lavender giant hyssop, is a species of perennial plant in the mint family, (Lamiaceae).

Is Borage a perennial?

Common borage (Borago officinalis) – Also known as starflower, common borage is the most familiar of the different types of borage. … Most borage varieties are fast-growing annuals, but creeping borage is a short-lived perennial suitable for growing in USDA planting zones 5 and above.

Does hyssop transplant well?

Hyssop seeds usually take between 14 and 21 days to germinate and can be transplanted (if sown indoors) in the garden after the threat of frost has ended in spring. Space hyssop plants about 6 to 12 inches (15-30 cm.) apart. … In some areas, however, hyssop plants will self-seed readily.

Is Lavender a hyssop?

The bright purple flowers and textured foliage of Lavender Hyssop (Agastache foeniculum) are a popular addition in the sunny perennial garden, and this pollinator favorite can be added to the herb garden as well. … Lavender Hyssop is biennial, and self-sows readily on open soil.

Can dogs eat hyssop?

Although there is some research showing that an essential oil from Giant Hyssop (Agastache foeniculum) is an effective insecticide against several species of insects, there is nothing to say that eating parts of the plant would harm tortoises, and it is generally considered safe for cats and dogs.

Do bees like hyssop?

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.