Species giant hyssop
pink-orange flowers and orange buds with purple sepals and foliage

giant hyssop

Agastache 'Firebird'

Giant Hyssop (Agastache 'Firebird') is an amazing flowering plant that features giant flower spikes in vibrant colors such as red and orange. Its impressive size and glorious color make the Giant Hyssop an eye-catching addition to any garden. Not only is it beautiful, it also boasts a unique sweet and spicy fragrant aroma. Its star-shaped flowers attract a variety of pollinators such as butterflies and hummingbirds, adding motion and activity to the garden. The stems remain upright even after the blooms fade, adding texture and interest to perennial beds and garden borders. Hardy and tolerant of both heat and drought, Giant Hyssop is a must-have for any garden.

Cycle:

Herbaceous Perennial

Watering:

Frequent

Propagation:

Division,Cutting,Layering Propagation,Seed Propagation,Root Cutting

Hardiness Zone:

6 - 9

Flowers:

Coppery orange to coral Flowers

Sun:

full sun

Leaf:

Yes

Leaf Color:

burgundy

Growth Rate:

High

Maintenance:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

Water giant hyssop (Agastache 'Firebird') deeply to ensure the roots get plenty of moisture. During their first growing season, giant hyssop should be watered 2-3 times a week if the soil is dry. Once they are established, only water them 1-2 times a week. Watering should be done slowly so that the soil can absorb the moisture, and avoid overwatering. In locations with high humidity, it is recommended that giant hyssop be watered every other day. In the winter months, giant hyssop should be watered once a month or when the soil is dry.

sunlight

Giant hyssop, or Agastache 'Firebird', loves full sun! This plant will thrive when it has a minimum of 6 hours of direct sunlight per day in the growing season. Giant hyssop also prefers full sun in the spring, when growth is most active, and during early summer. It is able to tolerate partial shade during the hotter months of the year, as long as its sun exposure does not dip below 4 hours per day, especially for more northern regions where the sun is more intense in the heat of summer.

pruning

Giant hyssop (Agastache 'Firebird') should be pruned in early spring before new growth appears. Pruning should only be done to remove dead or damaged stems and branches. In general, light pruning is recommended, and any vigorous pruning should be avoided. It is best not to prune more than 1/3 of the total foliage of the plant at any time. Pruning should also be done carefully to avoid causing any harm to the larger woody stems and should not be done excessively.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Agastache 'Firebird' typically starts flowering in late spring or early summer, usually in May or June.

Starts Flowering

Agastache 'Firebird' typically starts flowering in late spring or early summer, usually in May or June.

Hardiness Map