Photo of Dahlia merckii by Far Reaches Farm

Photo by Far Reaches Farm

Used with permission, all rights reserved

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Dahlia merckii

Plant type

perennial, bulb / corm / tuber

size

  • H: 3'-6'
  • W: 2'-4'

planting zones

  • 7b-11

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Dahlia merckii plant details

Dahlia merckii is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In fall and summer lavender flowers emerge. Attracts bees making it an excellent addition to pollinator gardens. Grows well with sun and even moisture - regular water. Does well in average, rich and well-drained soil.

CHARACTERISTICS OF Dahlia merckii

Plant type: perennial bulb / corm / tuber
Plant family: asteraceae
Foliage: deciduous green
Mature size: 2 FT - 4 FT - wide, 3 FT - 6 FT - tall
Flowers: lavender blooms in fall and summer

GROWING CONDITIONS for Dahlia merckii

USDA Zones: 7b - 11
Sun exposure: sun
Watering frequency: even moisture - regular
Soil needs: average, rich and well-drained

Nursery contributed plant descriptions

One of the best of the species for the home garden, this is nicely hardy here and always blooms. While the pale lavender flowers are small - think of the increasingly rare 50 cent piece for comparison - they are held to good effect on long stems to 3' tall and perfectly displayed over precision cut foliage. This is what we think of as a finely honed dahlia with all parts working together in effortless harmony. This is the kind of thing that so often eludes fine design but when it is captured, you know it at a cellular level. This species is a parent of the very classy Dahlia 'Ethereal' which is much admired here and which is in the pipeline!

Gardening facts about Dahlia merckii plant

How to Grow Dahlia merckii

  • Soil Needs

    • average
    • well-drained
    • rich
  • Water Needs

    • even moisture - regular
  • Sun Exposure

    • sun

Features

  • Flower Season

    • summer
    • fall
  • Wildlife

    • bees
  • Flower Color

    • lavender
  • Foliage Color

    • green
  • Foliage Season

    • deciduous

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