Verbena rigida (syn. v. venosa) slender vervain
size/type
mid-sized perennial,mid-sized perennial
usual height
0,4-0,6m
usual width
0,3-0,4m
leaves
deciduous broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
July-September
location
full sun
soil type
any (acidic to alkaline)
soil moisture requirements
dry and sharply drained (xeriscape)
winter protection
for zone 5+6
for zone 7
categorized
Description of the plant:
Slender vervain is a South American perennial from Brasil and Argentina which is cultivated in temperate parts of the world as a self-seeding annual. It usually germinates only when the weather has turned really hot which is mid to late June in Central Europe and starts to flower within a few weeks afterwards. Plants that were overwintered in a pot indoors and planted out in spring will flower about a week earlier. Slender vervain makes lax corymbs or short terminal spikes composed of salverform flowers of vibrant magenta colour atop 40-60 cm tall, many-branched, slightly procumbent stems. Leaves are quite handsome, mid green, lance-shaped, coarsely toothed, and rough. Flowering lasts until the last sunny and warm days of autumn, commonly early to mid October.
The plant hates too much water and naturally occupies dry slopes and plains. It is not fussy about soil pH, it will live in almost any free-draining soil. Feeding is not necessary but selective fertilizes may promote formation of new flowers during summer. Perennial hardiness is irrelevant if the plant is cultivated as a self-seeding annual.
Last update 11-11-2021
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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.
