
Light Needs

Mature Height

Mature Spread

Growing Zones
Little Adder Hyssop blooms for weeks longer than other varieties, and stays compact, making it useful to tuck into just about any empty space in the landscape. The fragrant foliage and flowers are absolute magnets for beneficial insects, pollinators, and hummingbirds. The lavender blue flower spikes bloom from early summer to late fall, requiring little maintenance. Little Adder Hyssop is truly a plant-it-and-forget-it type of herb, perfect for any level of gardening skill.
Hyssop is part of the mint family, although Little Adder has a more restrained growth and spreading habit. The anise-scented leaves and flowers are appealing to pollinators and people, but absolutely repulsive to deer and rabbits, making hyssop great for growing in areas with heavy deer pressure. Agastache is native to drier parts of the Mediterranean and Europe and is exceptionally drought tolerant after it is fully established. Grow Little Adder along an herb border, within a kitchen garden, or on its own in a container for a patio or deck.
Little Adder Hyssop Care
Little Adder Hyssop grows best in well-draining soil that is low in nutrients. Fertilization is rarely required, although the plants appreciate a light mulch. Water plants deeply once a week to encourage a deep root system during the first year of growth. Supplemental watering will only be required during long periods of heat or drought.
Annual maintenance is a breeze for Little Adder Hyssop. Cut back the spent top growth either in the fall or late winter as new growth is emerging. This plant only lightly self-seeds and does not require deadheading. Any new seedlings can be culled early in the spring. Divide Hyssop every 2-3 years to help keep the plants vigorous.
Little Adder Hyssop Spacing
Hyssop and other naturalizing perennials look best when they are planted in large groups or left to self-seed and form natural drifts. To achieve a quick ground cover effect, space each plant 20 inches apart. Use a 12-inch container to house a single plant, and enjoy being able to move it around the garden as other plants die back for the summer.
Little Adder Hyssop Information
USDA Hardiness Zones: 5 - 9 |
Plant Type: Perennials |
Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight) |
Mature Height: 15 - 18 Inches |
Mature Spread: 20 - 24 Inches |
Spacing: 20 - 24 Inches |
Habit: Mounded |
Flower Color(s): Purple |
Flower Description: Purple Shades |
Bloom Period: Spring to Fall |
Foliage Type: Herbaceous |
Foliage Color(s): Green |
Foliage Description: Fragrant Foliage |
Seasonal Interest: Spring Flowering, Summer Flowering, Fall Flowering, 3 Season Interest |
Watering: Average |
Resists: Deer |
Tolerates: Drought |
Attracts: Bees, Butterflies, Hummingbirds |
Container Role: Thriller |
Uses: Borders, Containers, Mass Planting |
Features: Attracts Pollinators, Cut Flowers, Fragrant |
Brand: Proven Winners |
Common Name: Little Adder Hyssop |
Other Name(s): Anise Hyssop |
Scientific Name: Agastache rugosa 'Little Adder' USPP 26,514 |
- SKU:
- AGALA
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
All bushes, perennials & trees come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.