Euphorbia x martinii 'ASCOT RAINBOW' spurge
size/type
mid-sized perennial,mid-sized perennial
usual height
0,5-1m
usual width
0,4-0,6m
leaves
evergreen broadleaf
colour of leaves
flowers
less showy but noticeable
colour of flowers
blooming time
April-June
location
full sun
USDA zone (lowest)
7 (down to -23°C)
winter protection
for zone 5+6
for zone 7
categorized
Euphorbia
Euphorbia - spurge represents a large family of plants where the most eye-catching ones are not hardy enough for Central European climate (zone 6). However, there are also hybrids where one of the parents bear the beauty of the tender species, and the other improves hardiness. Such as this one.Description of the plant:
Ascot rainbow is a semi-woody perennial spurge found as a natural mutation of an old unnamed hybrid by David Glenn from Australia in 2005. This variety has beautiful, evergreen foliage boasting with rich banana yellow variegation at leaf margins around grey green centres. In autumn and winter older leaves and yellow parts gain pink shades, and top rosettes turn burgundy red. Stems are red all season long, and at their tops are borne large panicles of small, yellow and green flowers with red centres in summer.It flowers on previous year's wood so any pruning, if required, has to be done immediately after flowering in summer. All parts of the plant produce milky sap when cut, crushed, or bruised, that is toxic and can cause skin irritation. The plant was patented as PP21401 in 2010.
Spurge will grow in full sun in almost any well-drained garden soil provided it is protected wet conditions, mainly in winter. Its autumn foliage colour improves with the levels of nitrogen in the soil so a small dose of slow-release fertilizer would do the trick in late summer, but is not necessary. It is hardy to min. -24°C (USDA zone 6), possibly a few degrees more.
Last update: 08-12-2016; 18-02-2025
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GLOSSARY
- STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
- DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
- EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
- STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
- HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
- SHRUB - a woody plant with branches growing bushy from the ground level.
- HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
- FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
- GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
