Penhill Watermelon Giant Giant Decorative Dahlia Tuber Preorder Spring 2026
$15.00
Preorder 2026 Spring Season – Shipping starts mid March
A gorgeous combination of vibrant watermelon pink tones and blush pink, a beloved large and showy dahlia with blooms ranging from bright pink to pale and soft pinks, flowers 10-12″ inches across on a 4-5′ plant. The color shifts with the seasons—appearing more pink in the heat of late summer and transitioning to softer pale pink as the weather cools. This 4-5 ft tall plant requires staking for support. Its show-stopping blooms make it the most sought-after dahlia, perfect for gardens and floral arrangements alike. Makes a great cut-flower for arrangements, bouquets.
Style: Dinnerplate
Height: 4-5’ (staking recommended)
Bloom Size: 10-12”
Bloom Period: Midsummer through first frost (latest to bloom in the field)
Listing is for 1 tuber with at least one visible eye, may receive multiple tubers with multiple eyes depending on the type of dahlia. Tubers are all shapes and sizes.
In stock
Description
Preorder 2026 Spring Season – Shipping starts mid March
A gorgeous combination of vibrant watermelon pink tones and blush pink, a beloved large and showy dahlia with blooms ranging from bright pink to pale and soft pinks, flowers 10-12″ inches across on a 4-5′ plant. The color shifts with the seasons—appearing more pink in the heat of late summer and transitioning to softer pale pink as the weather cools. This 4-5 ft tall plant requires staking for support. Its show-stopping blooms make it the most sought-after dahlia, perfect for gardens and floral arrangements alike. Makes a great cut-flower for arrangements, bouquets.
Style: Dinnerplate
Height: 4-5’ (staking recommended)
Bloom Size: 10-12”
Bloom Period: Midsummer through first frost (latest to bloom in the field)
Listing is for 1 tuber with at least one visible eye, may receive multiple tubers with multiple eyes depending on the type of dahlia. Tubers are all shapes and sizes.
Planting Information
Timing: Plant after the last frost when soil temperatures reach 60°F. Store tubers in a cool, dry, dark place until planting. Plant in a pot and keep indoors under lights if started early.
Location: Select a sunny, well-drained spot.
Planting Depth: Loosen soil about 1’ deep. Position the tuber with the top no more than 1-2” beneath the soil surface.
Watering: Water well at planting, then do not water again until sprouts emerge to prevent rot.
Soil Care: Enhance with compost and an all-purpose fertilizer for optimal growth.
Growing Tips
Pinching: Removing the growing tip after 3-4 sets of leaves encourages more blooms but delays flowering by a few weeks.
Support: Stake tall plants to keep stems upright and prevent breakage.
Deadheading: Removing spent blooms promotes continuous flowering.
Overwintering
End of Season Care: Let plants grow until the first frost. As temperatures drop, stems and flowers will die back, and the tuber will begin to harden.
Lifting & Storage for areas where there are freezing temperatures Zones 3-7:
After the first frost, allow tubers to harden for 1-2 weeks before lifting.
Do not let tubers freeze. Shake off excess soil and dry for 24-48 hours out of direct sunlight.
Store at 40-50°F in slightly moistened vermiculite or similar material.
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