Dwarf Hostas: Miniature and Small Types and How to Grow Them
“Dwarf hosta” is not an official category. Growers use it loosely for two of the American Hosta Society size classes, which are defined by leaf area. Iowa State University Extension gives the limits:
- Miniature: leaves under 6 square inches (about 39 cm²).
- Small: leaves from 6 to under 30 square inches (about 39–194 cm²).
Miniatures need slightly different care from ordinary hostas, mainly sharper drainage and protection from drying out. Small hostas grow much like their larger relatives. Both suit pots, troughs, rock gardens and the front of a shady border.
How to tell miniature from small
Leaf area is hard to measure in a garden centre, so use the registered size of the whole plant as a guide. Sizes below are height × spread from each cultivar’s record in the Hosta Registry. Plants in the ground can grow larger than plants kept in a trough.
A few points cause confusion:
- A small leaf does not always mean a small clump. Cookie Crumbs is a miniature at 13 cm tall but spreads to 41 cm.
- Some plants sold as “dwarf” are not. An older version of this page listed Green Gold and Butter Rim among dwarf hostas. Their registry records give 58 × 127 cm and 33 × 84 cm, which is medium to small, not miniature (Green Gold, Butter Rim).
- Flower stems can be tall. Baby Booties is registered at 18 cm high, but its flower scapes reach 56–61 cm (Hosta Registry).
Growing miniature hostas
Miniatures have fine, shallow roots. The British Hosta and Hemerocallis Society and the RHS agree on the basics:
- Drainage first. The British Hosta and Hemerocallis Society suggests adding about 40% grit, sharp sand or vermiculite to multipurpose compost.
- Do not let them dry out. The RHS says miniatures want soil that does not dry out in summer but still drains well. Shallow roots dry quickly, so check pots and troughs often in warm weather.
- Light shade. The RHS recommends a lightly shaded position and warns against very sunny, dry spots.
- Topdress with gravel. The RHS suggests a gravel layer on containers, which keeps the crown area clean and slows drying.
- Leave them outside in winter. All hostas benefit from 4–6 weeks of dormancy below 4°C (40°F), according to the British Hosta and Hemerocallis Society, which advises never bringing them indoors.
Troughs and containers
A trough is the classic home for miniatures. The RHS notes that a trough restricts the roots and therefore the size of the plant, and suggests pairing minis with ferns, mosses and hardy cyclamen in a shady rock garden. The British Hosta and Hemerocallis Society suggests troughs with 10–13 cm (4–5 in) of compost and plenty of drainage holes.
The general RHS growing guide adds that containers need regular watering and that hostas can be divided in autumn or early spring. Our guide on how to divide and transplant hostas covers that step.
Slugs
Small plants lose a larger share of their leaves to a single night of slug damage. Thick-leaved cultivars are generally less eaten, according to the RHS, and pots raised off the ground are easier to protect. For options, see slug and deer deterrents.
Miniature hostas with registered sizes
| Cultivar | Registered size (H × W) | Notes from the registry |
|---|---|---|
| Blue Mouse Ears | 13 × 23 cm (5 × 9 in) | Blue-green, heart-shaped base; Hosta of the Year 2008 |
| Mini Skirt | 18 × 36 cm (7 × 14 in) | Wide creamy margin, very wavy; Hosta of the Year 2024 |
| Cookie Crumbs | 13 × 41 cm (5 × 16 in) | Green with a thin pure white margin |
| Baby Booties | 18 × 30 cm (7 × 12 in) | Little heart-shaped leaves, creamy white margin; fast growth |
| Church Mouse | 18 × 30 cm (7 × 12 in) | Waved blue-green leaves, faint margin |
| Frosted Mouse Ears | 18 × 46 cm (7 × 18 in) | Margined form of Royal Mouse Ears |
| Curly Fries | 13 × 41 cm (5 × 16 in) | Narrow, highly ruffled, chartreuse turning yellow or cream |
| Little Caesar | 13 × 30 cm (5 × 12 in) | Creamy white centre, green margin; fast growth |
| Lemon Lime | 13 × 18 cm (5 × 7 in) | Narrow chartreuse-gold leaves |
| Tiny Tears | 5 × 18 cm (2 × 7 in) | Green leaves about 2.5 cm long |
| Pandora’s Box | 4 × 14 cm (1.75 × 5.5 in) | Creamy white centre, blue-green margin; white scapes |
Registry records: Blue Mouse Ears, Mini Skirt, Cookie Crumbs, Baby Booties, Church Mouse, Frosted Mouse Ears, Curly Fries, Little Caesar, Lemon Lime, Tiny Tears, Pandora’s Box.
The RHS miniature hosta page also features Blue Mouse Ears and Paradise Puppet (both with the RHS Award of Garden Merit), Pandora’s Box, Little Caesar and the species Hosta venusta.
The very smallest plants, such as Pandora’s Box and Tiny Tears, are easy to lose among other plants. They are best kept in a trough or pot where you can see and water them.
Small hostas for edging
If you want low plants to edge a shady path, small hostas are often more practical than true miniatures because they fill space faster. Hostas form clumps rather than running mats, so “ground cover” really means planting clumps close enough to meet. Use the registered spread as your spacing.
| Cultivar | Registered size (H × W) | Notes from the registry |
|---|---|---|
| Blue Elf | 10 × 28 cm (4 × 11 in) | Very thick blue leaves |
| Ray of Hope | 13 × 36 cm (5 × 14 in) | Narrow, wavy, streaked leaves |
| Dew Drop | 20 × 20 cm (8 × 8 in) | Dark green with a creamy white margin |
| Abiqua Blue Edger | 23 × 51 cm (9 × 20 in) | Powdery blue leaves |
| Alpine Dream | 23 × 51 cm (9 × 20 in) | Medium green leaves |
| Blonde Elf | 25 × 64 cm (10 × 25 in) | Dense, fast-growing mound of golden-yellow leaves |
Registry records: Blue Elf, Ray of Hope, Dew Drop, Abiqua Blue Edger, Alpine Dream, Blonde Elf.
Jadette, a miniature registered at 15 × 30 cm (6 × 12 in), is described as semi-stoloniferous, meaning it spreads by short runners (Hosta Registry). It has dark green leaves with a creamy white margin.
Planting a miniature trough: step by step
- Choose a trough or wide, shallow pot with several drainage holes.
- Mix multipurpose compost with about 40% grit or sharp sand.
- Plant the hostas at the same depth they grew in their pots, spaced by their registered spread.
- Add ferns, mosses or small hardy cyclamen if you like the rock-garden look the RHS describes.
- Top the surface with fine gravel and water thoroughly.
- Set the trough in light shade, check moisture often in summer, and leave it outdoors in winter.
For general watering and feeding, see the hosta care guide. Tools for small-scale work are in shade garden tools.
Related guides
- Types of hostas: size, leaf colour and light
- The best types of hostas: proven cultivars by use
- Blue hostas
- Hostas for shade
- How to divide and transplant hostas
Sources
- Iowa State University Extension and Outreach, Hostas
- Royal Horticultural Society, Miniature hostas
- Royal Horticultural Society, Hostas: growing guide
- British Hosta and Hemerocallis Society, Miniature and very small hostas
- Hosta Registry records as linked in the tables above, plus Green Gold, Butter Rim and Jadette