Diamond Crown ISG Hardy Water Lily — Speckled Purple Showpiece with Tropical Flair
The Diamond Crown ISG Hardy Water Lily (hardy × tropical cross) delivers tropical-style, speckled purple-to-pink blooms (≈5–7") on a plant that overwinters like a hardy water lily. In warm water and full sun, Diamond Crown throws showy, freckled petals above clean green pads—an instant centerpiece for lined ponds, wide containers, or earth-bottom shelves.
Why Customers Love It
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Rare speckled petals—purple/pink “diamond” flecks that look hand-painted
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Tropical look, hardy reliability (ISG = hardy × tropical)
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Steady to heavy bloomer in warm water with regular tablets
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Great value centerpiece for medium and large water gardens
Plant Requirements (quick reference)
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Sun: Full sun, 6+ hours of strong midday light
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Container: 16–20"+ wide, shallow aquatic container (fabric pots preferred)
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Depth (soil surface → water surface): 8–16" (shallow = more flowers)
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Spread: ~4–6 ft with room
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Soil: Heavy loam topsoil only (no bagged mix, peat, “aquatic media,” or gravel)
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Hardiness: USDA Zones 6–11/12; emerges later than standard hardies
Care & Fertilizing (simple schedule)
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Fertilizer tablets: 6–8 tablets on the 1st & 15th each month (May–September)
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Application: Press tablets 3–4" into soil around (not on) the crown
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Warm-water cue: ISGs flower best once water at crown level is ≈70°F (21°C)+
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Maintenance: Trim spent blooms/yellow leaves; divide annually if crowded
Water Lily Planting Tips
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Plant shallow (8–12") to warm the crown and ramp up buds
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Choose wide, shallow containers; more rhizome run = more flowers
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Keep surface water open and unshaded—pads are your “solar panels”
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Avoid splashing/aeration directly over pads; still water shows freckles best
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Start with normal feeding, then increase to ISG rates as growth surges
Do’s & Don’ts
Do
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Plant in full sun and heavy loam for best performance
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Fertilize twice monthly at ISG rates (6–8 tabs)
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Repot immediately on arrival; keep all parts wet while planting
Don’t
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❌ Don’t use compost/peat mixes, “aquatic media,” or gravel (they float, rot, or smother crowns)
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❌ Don’t let floating plants shade Diamond Crown—light drives flowering
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❌ Don’t plant too deep (>16–18") if you want frequent blooms
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❌ Don’t place in cold spring water—ISGs stall below ~70°F at the crown
Helpful Links
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Full Planting Instructions →
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Waterlily World® Fertilizer Tablets →
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PondGro™ Aquatic Loam Soil →
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Aquatic Containers →
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PondGro™ Fabric Pots →
Shipped as: a live young adult plant (rhizome with leaves/lilypads). Plant immediately in heavy loam soil at the recommended shallow depth. Minor leaf yellowing from transit is normal and quickly replaced by new growth.
