Sun Requirements. Cut the plants back completely during early spring. Type of plant: Anise hyssop is a perennial herb. If you are cultivating hyssop to use in cooking or for consumption, it is best to use the herb if it is fresh. Harvest hyssop leaves anytime during the season with or without flowers. This hard-working group of perennials does so much. This winter front door display is layered with holiday cheer. Homemade cookies are always a welcome treat. At just 18-24 inches tall, it's a compact plant that performs well in beds and borders as well as in container gardens. Agastache foeniculum bears upright columns of purplish-blue blooms on plants 2-5 feet tall. Infuse into a tea, add the flowers to a salad or use as a cake decoration. It grows in USDA zones 2 to 8. The plants can also be divided during the spring or fall months. Globe thistle is one of the most elegantly colored plants around. Even as a common name, the term "giant hyssop" can be misleading because more than one Agastache species is referred to by this term. Your email address will not be published. Hyssop blooms in late summer through early autumn with flower spikes of deep blue, red, pink or white. Your biggest maintenance chore will be pruning them back in early spring to promote lush growth. Among them is the yellow giant hyssop (Agastache nepetoides), a scentless variety which is tall and produces yellow flower spikes that are mulch bulkier than common or anise hyssops. The stiff, erect, typically square stems bear opposite, linear, medium green leaves 1 to 1 1/2 inches long. We’ll help you set up a baking kit for beginners with 21 essential tools. Several plants fall under the loose umbrella of Mexican or Southwestern hyssop. Deep brunettes, sandy blondes, and bold reds are in this year. If the pests are feeding below ground, the plant may be wilted, yellow, or unusually small. Zones 4-10, Agastache 'Heatwave' is a hybrid with bright lavender-pink blooms that attract butterflies, hummingbirds, and bees from mid- to late summer when it is in bloom. Zones 5-10, Agastache 'Summer Glow' brings a unique color for agastaches. So much so, in fact, that we're gaining 25,000+ new customers with each passing year. Hosting Thanksgiving dinner for the first time or need a quick refresher? On average, these giant hyssops grow between 2 and 3 feet tall and grow in USDA zones 6 to 9. Explore these Hyssop Herb Seed Varieties: Liquid error (main-menu line 39): Could not find asset snippets/menu-cart.liquid. Hardiness: Hyssop is cold hardy to -35°; winter protection is not necessary. If started indoors, move the hyssop plants outdoors after the threat of frost has passed. Plant hyssop in a pollinator or herb garden, or as a companion plant in vegetable gardens. We've got the low-down on how to make sure everything from your perennials to your roses are ready when the snow flies. Hyssop can grow up to 2’ high. Zones 5-10. Cheers, Adam. It bears foot-long spikes of purplish-pink blooms throughout the summer on plants that grow 3-4 feet tall. How To Grow Pulmonaria (Lungwort) Flowers. this website. You’ll have the best success growing hyssop in full sun, but it will also do well in partial shade. The hyssop herb also has a strong flavor and is used as a main ingredient in Middle Eastern spice mixes, along with sumac. Your kitty deserves a name as special as she is. All the times and temperatures you need to know to roast turkey, chicken, beef, and pork for your feast. Even though we are inspected frequently by numerous state and federal regulatory agencies, we want you to know that our standards are much higher than the minimum regulatory requirements.