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Lobelia Genus

 

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General Needs

  • LightFull sun
  • HardinessHalf hardy (min 0°C)
  • SoilFertile
  • Soil pH6.0 to 7.0
  • WaterMoist

Description

Lobelia genus. This genus, named after the 16th century plant collector M. Matthias de Lobel, consists of annuals, perennials and deciduous or evergreen shrubs. They are grown for their flowers and foliage.

Characteristics

Annuals or Perennials, Deciduous or Evergreens, Shrubs or Herbaceous

Origin

N, S & C America

Interest and use

Grown for their flowers. Some are suitable for wild gardens or by the waterside. Suitable for coastal conditions.

Cultivation

These frost-hardy to somewhat frost-tender plants are best grown in well-drained, moist, light loam, enriched with animal manure or compost. They have a minimum temperature of 5C. Most grow in sun or part-shade but resent wet conditions in winter. Prune after the first flush of flowers to encourage repeat flowering, and fertilize weekly with a liquid manure during the season. Transplant from late autumn until early spring. In cold areas some perennials and shrubs are therefore best lifted in autumn and placed in well-drained compost in frames.

Propagation

You can propagate by annuals by seeds in the spring, and perennial species by seed or division in the spring. Specific cultivars are propagated by division only. Shrubs by semi-ripe cuttings in summer.

Pests, diseases or disorders

Prone to leaf blotch.

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