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Linanthus grandiflorus

Mountain phlox

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Key information

Plant type

Hardy annual

Flower colour






Skill level


photo by Howard Rice, copyright GAP Photos (200867)

Plant details

There are a number of easy-going annuals for sowing lavishly in bold patches to quickly create a dramatic splash of colour without further effort. Linaria and the annual flowering flax, Linum grandiflorum, are two examples, mountain phlox is another. It used to be known as Gilia grandiflora, and was recognised as one of those pretty and accommodating annuals for scattering and cutting. The plants are quite undemanding, and may be sown in autumn for early flowers and again in spring to continue the supply through until autumn.

Family: Polemoniaceae

Genus: Linanthus

Species: grandiflorus

Plant type: Hardy annual

Flower colour: White

Foliage colour: Dark green

Feature: Flowers

Sun exposure: Full sun

Soil: Well-drained/light, Chalky/alkaline, Dry, Sandy

Hardiness: Hardy

Skill level: Beginner

Height: 45cm

Spread: 25cm

Time to plant seeds: March to May

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