Hosta Rock Island Line
Hosta x hybrida 'Rock Island Line'
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
24 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Prefers moist environments
Lifespan
Perennial
Native To
Northeast Asia
Toxicity
Toxic to dogs, cats, and horses
The Story
Plant Bio
A deciduous perennial forming a mound of variegated foliage. Leaves have creamy white centers and wide, irregular dark green margins. This medium-sized hosta is noted for its striking leaf variegation and lavender, bell-shaped flowers on tall scapes in mid-summer.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds or divisions into shaded soil
- Water regularly until established
- Mulch to retain moisture and suppress weeds
- Fertilize in early spring with balanced fertilizer
- Divide every 3–4 years in early spring
- Protect from winter frost with mulch
Pro Tip
Plant in shaded areas with rich, well-drained soil for best results.
Keep It Thriving
Care Guide
Do
- Water consistently during dry spells 🌱
- Apply mulch annually to retain moisture
- Divide in early spring to promote healthy growth
- Remove dead or damaged leaves to encourage new growth
Don't
- Avoid full sun exposure, which can scorch leaves ❌
- Over-fertilize, leading to weak stems
- Ignore pests like slugs and snails
- Plant in poorly drained soil
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| 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 Rock Island Line questions
What zones can Hosta Rock Island Line grow in?
Hosta Rock Island Line is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Hosta Rock Island Line deer resistant?
Not reliably. Deer may browse Hosta Rock Island Line, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Hosta Rock Island Line bloom?
Hosta Rock Island Line typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Hosta Rock Island Line need full sun?
Hosta Rock Island Line does best in part shade.
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