Rudbeckia laciniata 'GOLDQUELLE'

Rudbeckia laciniata
Rudbeckia laciniata 'GOLDQUELLE'
cutleaf coneflower
SIZE/TYPE mid-sized perennial
USUAL HEIGHT 0.8-1m
USUAL WIDTH 0.3-0.4m
LEAVES deciduous broadleaf
COLOUR OF LEAVES green
FLOWERS showy
COLOUR OF FLOWERS yellow
BLOOMING TIME August - October
LOCATION full to partial sun
USDA zone (lowest) 4   (down to -34°C)
WINTER PROTECTION  
FOR ZONE 5+6 Code of winter protection zone 5+6
FOR ZONE 7 Code of winter protection zone 7
BELONGS TO CATEGORIES Perennials
Summer blooms
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Cutleaf coneflower is a North American species of black-eyed Susan. Its natural habitat ranges from SE Canada to central USA where in many locations it is considered invasive. However, its varieties and garden selections are much less aggressive and provide a showy display of golden yellow flowers from midsummer till autumn.

Goldquelle is a fully double flowering variety of cutleaf coneflower. Its bright yellow flowers are 8-10 cm across and look almost like dahlias. Leaves are light to medium green, deeply lobed as if divided. Stems reach about one meter tall which makes Goldquelle a perfect companion plant for the back of a perennial border, or serves as a limelight planted in mass in front of dark green conifers or taller shrubs or trees.

Cutleaf coneflower is not picky about soil pH and prefers moist or even boggy soil and under these conditions loves full sun. In normal garden soil which might lack moisture it performs better in partial or filtered sun. It usually requires no fertilizing if grown in deep soil. Remove all stems just bove ground level in early spring. Fully hardy to min. -34°C (USDA zone 4).

Last update 23-08-2019
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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.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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