
Hosta Green Authority
Hosta x hybrida 'Green Authority'
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
24 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8
Water
Moderate
Humidity
Moderate to high
Lifespan
Perennial
Native To
East Asia
Toxicity
Toxic to dogs, cats, and horses
The Story
Plant Bio
Hosta x hybrida 'Green Authority' is a deciduous perennial with broad, lush green leaves and a clump-forming habit, producing tall flower spikes with lavender to purple flowers in summer. This cultivar is highly valued for its vigorous growth, large foliage, and excellent shade tolerance, making it a popular choice for ornamental garden borders and shaded areas.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck healthy rhizomes into well-draining soil in spring.
- Water regularly to keep soil moist but not waterlogged.
- Mist foliage during dry spells for best growth.
- Apply mulch to retain moisture and suppress weeds.
- Divide every 3-4 years in early spring to promote vigor.
- Place in partial shade for optimal foliage color.
Pro Tip
Ensure soil remains consistently moist for vibrant foliage.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 💧
- Mulch to conserve moisture and suppress weeds
- Divide every few years to encourage healthy growth
- Place in partial shade for best foliage
Don't
- Avoid overwatering which can cause rot ❌
- Don’t expose to full sun which can scorch leaves
- Skip fertilizing in late fall
- Don’t ignore pest signs like slug damage
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Hosta Green Authority questions
What zones can Hosta Green Authority grow in?
Hosta Green Authority is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Hosta Green Authority deer resistant?
Not reliably. Deer may browse Hosta Green Authority, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Hosta Green Authority bloom?
Hosta Green Authority typically blooms in early summer through mid-summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Hosta Green Authority need full sun?
Hosta Green Authority does best in part shade.
More Hosta to compare

Blue Mouse Ears Hosta
Hosta cordifolia 'Blue Mouse Ears'

June Hosta
Hosta fortunei 'June'

Fire Island Hosta
Hosta fortunei 'Fire Island'

Patriot Plantain Lily
Hosta plantaginea 'Patriot'

Hosta Goldrush
Hosta x hybrida 'Goldrush'

Empress Wu Hosta
Hosta plantaginea 'Empress Wu'
