Heirloom

Magic Fountains Pure White

Delphinium elatum

Delicate flowers bloom against a cloudy sky.

Wikimedia Commons

Elegant, clean-white blooms with white centers (bees). Excellent for wedding design. Dwarf Pacific type with full florets and tight internodes. Magic Fountains' sturdy, compact plants will tolerate windy locations. Attracts bees and butterflies. This species of delphinium is also known as candle larkspur. Perennial in Zones 3-7.

Harvest

105-125d

Days to harvest

๐Ÿ“…

Sun

Full sun

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Zones

3โ€“7

USDA hardiness

๐Ÿ—บ๏ธ

Height

3-5 feet

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Planting Timeline

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Start Indoors
Transplant
Direct Sow
Start Indoors
Transplant
Direct Sow

Showing dates for Magic Fountains Pure White in USDA Zone 7

All Zone 7 flower โ†’

Zone Map

Click a state to update dates

CANADAUSAYTZ3NTZ3NUZ3BCZ8ABZ3SKZ3MBZ3ONZ5QCZ4NLZ4NBZ5NSZ6PEZ6AKZ3MEZ4WIZ4VTZ4NHZ5WAZ7IDZ5MTZ4NDZ4MNZ4MIZ5NYZ6MAZ6CTZ6RIZ6ORZ7NVZ7WYZ4SDZ4IAZ5INZ6OHZ6PAZ6NJZ7DEZ7CAZ9UTZ5COZ5NEZ5ILZ6WVZ6VAZ7MDZ7DCZ7AZZ9NMZ7KSZ6MOZ6KYZ6TNZ7NCZ7SCZ8OKZ7ARZ7MSZ8ALZ8GAZ8TXZ8LAZ9FLZ9HIZ10

Magic Fountains Pure White ยท Zones 3โ€“7

What grows well in Zone 7? โ†’

Growing Details

Difficulty
Easy
Spacing18-24 inches
SoilWell-drained loam with neutral to slightly alkaline pH (6.5-7.5); amended with compost and perlite for optimal drainage
WaterRegular; consistent moisture during growth and blooming, but intolerant of waterlogged conditions. Allow soil to dry slightly between waterings.
SeasonPerennial
ColorPure white

Zone-by-Zone Planting Calendar

ZoneIndoor StartTransplantDirect SowHarvest
Zone 1May โ€“ JuneJuly โ€“ AugustJuly โ€“ Septemberโ€”
Zone 2April โ€“ MayJune โ€“ JulyJune โ€“ Augustโ€”
Zone 11January โ€“ JanuaryJanuary โ€“ FebruaryJanuary โ€“ Marchโ€”
Zone 12January โ€“ JanuaryJanuary โ€“ FebruaryJanuary โ€“ Marchโ€”
Zone 13January โ€“ JanuaryJanuary โ€“ FebruaryJanuary โ€“ Marchโ€”
Zone 3April โ€“ MayJune โ€“ JulyJune โ€“ Augustโ€”
Zone 4March โ€“ AprilJune โ€“ JuneJune โ€“ Julyโ€”
Zone 5March โ€“ AprilMay โ€“ JuneMay โ€“ Julyโ€”
Zone 6March โ€“ AprilMay โ€“ JuneMay โ€“ Julyโ€”
Zone 7February โ€“ MarchApril โ€“ MayApril โ€“ Juneโ€”
Zone 8February โ€“ MarchApril โ€“ MayApril โ€“ Juneโ€”
Zone 9January โ€“ FebruaryMarch โ€“ AprilMarch โ€“ Mayโ€”
Zone 10January โ€“ JanuaryFebruary โ€“ MarchFebruary โ€“ Aprilโ€”

Complete Growing Guide

Elegant, clean-white blooms with white centers (bees). Excellent for wedding design. Dwarf Pacific type with full florets and tight internodes. Magic Fountains' sturdy, compact plants will tolerate windy locations. Attracts bees and butterflies. This species of delphinium is also known as candle larkspur. Perennial in Zones 3-7. According to Johnny's Selected Seeds, Magic Fountains Pure White is 105 - 125 days to maturity, perennial, open pollinated. Notable features: Use for Cut Flowers and Bouquets, Attracts Beneficial Insects.

Light: Full sun (6 or more hours of direct sunlight a day). Soil: High Organic Matter. Soil pH: Alkaline (>8.0). Drainage: Good Drainage. Height: 3 ft. 0 in. - 5 ft. 0 in.. Spread: 2 ft. 0 in. - 3 ft. 0 in.. Spacing: 12 inches-3 feet, 3 feet-6 feet. Growth rate: Medium. Maintenance: Medium. Propagation: Seed. Regions: Mountains, Piedmont.

Harvesting

Magic Fountains Pure White reaches harvest at 105 - 125 days from sowing per Johnny's Selected Seeds.

Edibility: Toxic if eaten.

Storage & Preservation

Fresh flowers should be placed in cool water in a cool room (65ยฐF or lower) immediately after cutting. Change water every 2-3 days and re-cut stems at a 45-degree angle to maximize absorption. Properly stored Magic Fountains Pure White cut flowers last 7-10 days in a vase.

For longer-term preservation, air-dry the flower spikes by hanging them upside-down in a warm, dark, well-ventilated space for 2-3 weeks. Dried delphiniums retain their white color well and remain suitable for arrangements indefinitely. Alternatively, press individual florets between wax paper under heavy books for 1-2 weeks to create flat specimens for botanical crafts or pressed-flower art. For preservation in glycerin, stand fresh stems in a solution of 1 part glycerin to 2 parts water for 2-3 weeksโ€”this creates longer-lasting, slightly pliable flowers with a subtle cream tone.

History & Origin

Magic Fountains Pure White is open-pollinated, meaning seed saved from healthy plants will produce true-to-type offspring. Listed in the Johnny's Selected Seeds catalog.

Origin: Europe to Mongolia

Advantages

  • +Stunning pure white blooms perfect for elegant wedding floral arrangements
  • +Compact dwarf growth handles windy conditions without requiring staking support
  • +Attracts pollinators while maintaining pristine white flowers for clean designs
  • +Full florets on tight internodes create professional, densely-packed flower spikes
  • +Perennial in zones 3-7 provides multi-year garden value

Considerations

  • -Requires consistent moisture; susceptible to root rot in poorly-draining soil
  • -Powdery mildew common in humid conditions despite hardy nature
  • -Relatively short bloom window of 105-125 days limits extended flowering

Companion Plants

Catmint and lavender are the most practical neighbors here โ€” both tolerate the same well-drained soil, and their aromatic foliage does some work against soft-bodied pests without competing at the same root depth as the delphiniums. Yarrow pulls in parasitic wasps and predatory beetles that knock back aphid populations, which do occasionally colonize delphinium stems in early summer. Sweet alyssum does similar work at ground level, drawing hoverflies whose larvae eat soft-bodied pests. Marigolds (Tagetes patula specifically) fill the front of a border while the delphiniums claim the back โ€” useful structure, not just pest theory.

Black walnut is a hard no: juglone leaches from roots across a wide radius and is toxic to many perennials, delphiniums among them. Don't plant within reach of the canopy drip line, and root spread typically extends well beyond it. Fennel and eucalyptus cause problems through different chemistry โ€” fennel is broadly allelopathic to most neighboring plants, and eucalyptus leaf litter and root exudates suppress establishment of young perennials nearby. Neither one is worth the trouble of working around.

Plant Together

+

Sweet Alyssum

Attracts beneficial insects like hoverflies and parasitic wasps that control aphids

+

Marigolds

Repel nematodes and aphids while attracting beneficial predatory insects

+

Nasturtiums

Act as trap crops for aphids and flea beetles, drawing pests away from delphiniums

+

Catmint

Deters ants, aphids, and mice while attracting beneficial pollinators

+

Chives

Repel aphids and thrips with their sulfur compounds

+

Lavender

Repels slugs, moths, and mice while attracting beneficial bees and butterflies

+

Yarrow

Attracts ladybugs and lacewings that feed on aphids and other soft-bodied pests

+

Bee Balm

Attracts beneficial insects and may help improve overall garden ecosystem health

Keep Apart

-

Black Walnut

Produces juglone which is toxic to delphiniums and causes stunted growth or death

-

Fennel

Releases allelopathic compounds that inhibit growth of most flowering plants

-

Eucalyptus

Produces allelopathic chemicals that suppress growth of nearby plants

Pests & Disease Resistance

Diseases

Powdery mildew, crown rot (in poorly drained soil)

Troubleshooting Magic Fountains Pure White

What you'll see, why it happens, and what to do about it.

White powdery coating on leaves and stems, usually appearing mid-summer after the first flush of blooms

Likely Causes

  • Powdery mildew (Erysiphe aquilegiae) โ€” thrives in warm days and cool nights with low air circulation
  • Crowded planting at less than 18 inches that traps humidity around the foliage

What to Do

  1. 1.Cut the entire plant back to about 6 inches after bloom โ€” this removes infected tissue and often triggers a cleaner second flush
  2. 2.Space plants at least 18-24 inches apart and avoid overhead watering; water at the base in the morning
  3. 3.Apply a diluted neem oil spray (2 tsp per quart of water) every 7-10 days at first sign if you want to slow spread rather than cut back
Plant collapses or wilts at the crown despite adequate watering; stem base looks brown and mushy at soil level

Likely Causes

  • Crown rot caused by Sclerotium rolfsii or Phytophthora spp. โ€” both common in poorly drained or consistently wet soil
  • Planting in a low spot where water pools after rain

What to Do

  1. 1.Pull the affected plant โ€” there's no saving a mushy crown โ€” and do not replant Delphinium in that same spot for at least 3 years
  2. 2.Amend the bed with coarse grit or perlite before replanting elsewhere; these plants want consistent moisture but not saturated roots
  3. 3.Raise the bed by 4-6 inches if drainage is a chronic problem in your garden
Tall flower spikes snapping or leaning over at 45ยฐ, usually on plants over 3 feet, after wind or heavy rain

Likely Causes

  • Insufficient staking โ€” Delphinium elatum stalks are hollow and top-heavy once flowers open
  • Planting in an exposed site with no windbreak

What to Do

  1. 1.Insert bamboo stakes (one per stem, at least 4 feet tall) when plants hit 12 inches, and loosely tie stems every 12 inches as they grow โ€” don't wait until they're already leaning
  2. 2.If a stem snaps cleanly, bring it inside as a cut flower; it'll hold in a vase for 5-7 days
  3. 3.Next season, site the plants near a fence, hedge, or taller shrubs that buffer wind without shading them

Frequently Asked Questions

How long does Magic Fountains Pure White take to bloom from seed?โ–ผ
Magic Fountains Pure White blooms in 105-125 days from sowing. Start seeds indoors 8-10 weeks before your last frost date, and plants will flower mid- to late-summer. In mild climates (Zone 7+), direct-sow seeds in fall for spring bloom, shortening the wait. Germination takes 7-14 days under proper conditions.
Is Magic Fountains Pure White a perennial or annual?โ–ผ
Magic Fountains Pure White is a hardy perennial in USDA Zones 3-7. In these zones, it returns from the roots each spring, becoming stronger with age. In zones warmer than 7, it may behave as an annual or short-lived perennial due to heat stress. In Zone 2 or colder, provide winter mulch to protect crowns from extreme cold.
Can you grow Magic Fountains Pure White in containers?โ–ผ
Yes, Magic Fountains Pure White grows well in containers thanks to its compact, dwarf stature. Use 5-gallon pots or larger with drainage holes and high-quality potting mix amended with perlite for drainage. Keep soil consistently moist but never waterlogged. Containers may need winter protection in northern zones or should be moved to sheltered locations. Container-grown plants produce fewer stems than in-ground plants.
What's the difference between Magic Fountains Pure White and other white delphiniums?โ–ผ
Magic Fountains Pure White differs from taller heirloom delphiniums in compact growth (24-30 inches vs. 4-6 feet), requiring minimal staking. It's bred specifically for full, dense flower spikes with tight internodes, making it superior for commercial cut flowers. Other white delphiniums may be taller, more open-flowered, or less disease-resistant. Magic Fountains prioritizes practical garden performance and cut-flower quality.
How do you prevent powdery mildew on Magic Fountains Pure White?โ–ผ
Prevent powdery mildew by spacing plants 18-24 inches apart for air circulation, watering at soil level (never wetting foliage), and choosing full-sun locations. Avoid fertilizers high in nitrogen, which promotes soft, susceptible growth. If mildew appears, remove affected foliage promptly and apply sulfur dust or fungicide spray. In humid climates, consider painting foliage lightly with milk spray (1 part milk to 9 parts water) weekly as a preventative.
When should you plant Magic Fountains Pure White seeds?โ–ผ
Start seeds indoors 8-10 weeks before your last spring frost date. Direct-sow in containers in mid-to-late fall (Zone 7+ climates) for natural cold stratification; seeds germinate the following spring. Seeds need light to germinate, so press them onto soil surface without burying. Maintain 65-70ยฐF temperatures and moist (not soggy) conditions. Germination occurs within 7-14 days.

Growing Guides from Wind River Greens

Where to Buy Seeds

Sources & References

External authority sources used in compiling this guide.

See the Methodology page for how this data is sourced, what's AI-assisted, and known limitations.

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