Blue holly vs English holly

Blue holly and English holly are often considered for the same spot in the garden (hedge, screening, specimen). The data below shows where they differ: size, hardiness, care, toxicity and price.

Illustration of Blue holly

Blue holly

Ilex × meserveae 2 m × 1.5 m after 10 years

A dense evergreen shrub with glossy, blue-green, spiny leaves that is much hardier than English holly, so it works both as an impenetrable hedge and…

Hedge
Full sun
Part shade
from about PLN 18
Illustration of English holly

English holly

Ilex aquifolium 2.5 m × 1.5 m after 10 years

A slow-growing, dense evergreen shrub or small tree with glossy dark green or variegated leaves edged with spines, at its best in winter when the…

Shrub
Full sun
Part shade
Shade
from about PLN 18

Key differences

  • Blue holly is hardier: down to -29 °C, against -18 °C for English holly.

  • Blue holly copes better with summer heat than English holly.

  • English holly also takes heavy clay, Blue holly needs a loose, free-draining soil.

  • Blue holly needs less care than English holly.

  • English holly also grows in shade, Blue holly does not.

Which one to choose?

Blue holly is the better choice if the garden is cold or a frost pocket, the spot is hot and sunny or you have little time for care.

English holly is the better choice if the soil is heavy clay or the spot is shady.

Watch out for

Blue holly
In calcareous, alkaline soil the leaves turn yellow (chlorosis), the plant weakens and may die, so in many Central European gardens it needs acidic planting compost and regular soil acidifying. Winter sun and wind over frozen ground can scorch the leaves, and it suffers in hot dry summers without watering. Holly leaf miner, scale, spider mites and leaf spot may occur.
English holly
In Central Europe its main weakness is winter: in hard frost without snow cover, in windy sites exposed to winter sun, the leaves turn brown, shoots may die back, and below roughly -18 to -20 °C the plant can be seriously damaged. Plant it in part shade in the shelter of a building or other evergreens and water it on frost-free winter days. It copes poorly with hot, dry summers and with chalky, heavy or waterlogged soil, where it yellows and thins out, and root rot can set in when the ground stays too wet.

The data side by side

Feature
Blue holly
English holly
Group Hedge Shrub
Size after 10 years 2 m × 1.5 m (uncertain) 2.5 m × 1.5 m (uncertain)
Ultimate size 1.5–4.5 m × 1–3.6 m 4–15 m × 3–7.5 m
Growth rate Slow Slow
Light Full sun, Part shade Full sun, Part shade, Shade
Soil Average garden soil, Acidic Average garden soil, Acidic, Sandy, Clay
Hardiness down to -29 °C (USDA 4, RHS H7) down to -18 °C (USDA 6, RHS H6)
Heat tolerance Medium Low
Foliage Evergreen Evergreen
Flowering April–May, white May–June, white
Water need Medium Medium
Drought tolerance Low Low
Maintenance Low Medium
Planted as a hedge 3 plants per running metre 3 plants per running metre
For dogs Toxic Toxic
For cats Toxic Toxic
For children Toxic Toxic
Typical price about PLN 33 (< 40 cm) about PLN 89 (40–60 cm)

Prices are rounded, indicative values. Toxicity data is for information only. If your pet or child has eaten a plant, contact a vet or a doctor. Data updated: October 26, 2026

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