Yellow Giant Hyssop Quick Growth Guide

Photo:

Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 , via Wikimedia Commons

Yellow Giant Hyssop grows quickly to reach heights of 3 to 8 feet. The bigger, lower leaves can grow to be as huge as a thick piece of bread. And, depending on the plant’s age and general height, its bloom spike can be up to 16 inches long! The creamy tiny blooms that gather together on the spike are the only thing petite about this plant. In late summer, the blooms open one at a time, changing the colour to a delicate, mellow yellow.

In addition, Yellow Giant Hyssop blooms are a thriving nectar supply, attracting and supporting bumblebees, sweat bees, and butterflies throughout the fall season and, in some cases, right up until the first frost. According to research, this is one of Ontario’s top 20 plants for feeding pollinating insects.

Quick Growing Guide

Ritchie Feed and Seed Ad

Botanical Name: Agastache nepetoides

Also Called: Catnip Giant Hyssop

En français: Agastache faux-népéta

Colour:

Blooms:

Water: Medium-Wet, Medium, Medium-Dry

Pollinators:

Hardiness Zones:

Comments

Logging in to comment gives you more features, but it is not required.

Subscribe
Notify of
0 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments

More From Gardening Calendar

Easy Care Pothos Plant

Pothos plant, Epipremnum aureum, is one of the best plants for clean indoor air. It is easy care, versatile for pots, hanging baskets, totems.

Starting Seeds in August

Prepare your garden for the changing weather in August! Learn about starting seeds like lettuce and carrots, dealing with pests, and caring for potatoes and pumpkins.

Dense Blazing Star

Dense Blazing Star has purple wands of packed blooms that face all directions and bloom from the top of the stem down from midsummer to fall.

5 Colourful Fall Flowers for an Easy Care Autumn 

the more light they get, the bigger they can grow and the brighter their colours become.  But they’re not picky, so they’ll grow in just about any soil that’s well draining.   Providing a cheery autumn backdrop in your garden, the daisy-like blooms come in cheerful shades of yellow, pink, orange, purple, and white. And once you let the flowers go to seed, the birds will thank you for giving them a snack.   Strawflower Finale When deciding which plants to add to your garden, keep in mind ease of care. With a few of these low maintenance options from blooms come fall, you'll have a colorful and inviting garden to enjoy. Add a beautiful pop of color to your fall garden with these low maintenance, yet vibrant flowers! Shrub roses, toad lilies, turtleheads, and strawflowers are just some of the natural options