Isotoma axillaris Tristar Deep Blue - Rock Isotome

Laurentia 'Tristar Deep Blue', a variety of Isotoma axillaris, is a very recent creation. The flowering is particularly colourful. This small perennial plant, often grown as an annual in our climates, forms a round and dense clump of finely cut foliage, with well-branched stems covered in countless small star-shaped flowers of a deep blue-mauve, fragrant, from summer to autumn. This vigorous and heat-resistant variety is perfect for quickly filling hanging baskets, planters, and borders.

Originally from Australia, Solenopsis axillaris is a herbaceous perennial plant with a woody base, often grown as an annual due to its lack of hardiness, as well as its long and abundant flowering. It quickly forms a compact and nicely rounded, branched clump, measuring 25 to 30cm (10 to 12in) in all directions. Its narrow, tapered, finely cut and toothed evergreen leaves are dark green. Between May and October, and even until the first frost, its countless small 5-lobed star-shaped flowers of intense lavender-blue follow one another. They are pleasantly fragrant. This plant withstands heat and drought well, but will be more floriferous in fertile and moist soil.

Isotoma 'Tristar Deep Blue' is an easy-to-grow and very floriferous plant, although it is little known to amateur gardeners. Decorative with its beautiful blue flowering, it is used in flower beds, planted en masse in borders, and of course in pots, hanging baskets, and planters, and harmonizes well with a wide variety of other annual or perennial plants such as begonias, petunias, Bacopas, Nemesias, pink Gypsophila, or geraniums, for example.

Note: Please note that our young plug plants are professional products reserved for experienced gardeners: upon receipt, transplant and store them in sheltered areas (veranda, greenhouse, cold frame...) at a temperature above 14°C (57.2°F) for a few weeks before being installed outdoors once the risk of frost has been definitively eliminated.