Argentinian vervain

purpletop vervain

Large, upright, widely spreading deciduous perennial or annual (H 80-140 cm, W 40-60 cm). Stems dark green, roughly hairy, upright, widely spreading. Leaves elongate lanceolate (10-15 cm), simple, rough, dark green to dark grey-green. Flowers in numerous, dense terminal inflorescence, simple (0,5 cm), bright lilac-violet. Flowering period: July-September. Attracts butterflies and bees. Undemanding about soil conditions. Not reliably hardy in central-european continental climate, but often self-seeding and grown as an annual.
  • Plants for destinctively sunny sites need and tolerate a lot of direct sun radiation (eg. roses, even more spurge (euphorbia myrsinites) , sea buckthorn, sedum, most of rock-garden plants, cactuses etc). Mostly, but not necessarily, these plants can also tolerate drought. Roses need more water and noursihments and rich, deep, fetile soil, while white stonecrop survives more weeks in dry soil without rain or watering and can grow normally in poor, sandy soil as well.

  • Herbaceous plants are not woody. Their stems are soft, usually remaining green. With some herabceous older stems may harden and look like woody stems (e. g. bamboo).

  • The plant develops new leaves or needles every spring, which dropp off in autumn. Herbaceous plants can die completely in above ground section and grow back in the spring.

  • Plant can in otherwise appropriate environment survive cold down to - 18 °C.

  • Porous or dry soils are normally light and loose, there is no stagnant water but relatively quickly flows in deeper layers; such ground are more airy and warmer, yet drier and usually contain less humus and for such undergrowth it is often to for drought to appear (e. g. rockgardens, walls, by paths and roads, on gravel, also on gravel surface in towns and close to buildings ...), plants of such undergrowth need well-drained soil, they tolerate drought but cannot tolerate constant moisture or even flooding.

  • Herbaceous, not woody plant. Stems and leaves may be evergreen or deciduous - thus regrowing every spring. Perennials may blossom consecutively for several years. Some perennials develop special underground organs - bulbs, corms or rootstocks and these species are treated separetelly, not with geophyte and tuberous plants.

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Verbena bonariensis |P14

SKU 00022409
Produced in P14
On stock
6.00 €
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Tuesday, 13 March 2018
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