Luxor ISG Hardy Water Lily — Tropical-Style Lavender on a Hardy Plant

The Luxor ISG Hardy Water Lily (hardy × tropical cross) brings lavender-purple, tropical-looking blooms to a hardy water lily that returns each year. In warm water and full sun, Luxor produces showy flowers above handsome green pads—perfect for lined ponds, wide containers, or shallow shelves in earth-bottom ponds. If you want tropical color with hardy reliability, Luxor is a standout perennial pond plant for any water garden.

Why Customers Love It

• Tropical look, hardy performance (ISG = hardy × tropical)

• Vibrant lavender-purple blooms that read beautifully from a distance

• Steady to heavy bloomer in warm water with regular tablet feeding

• Easy once warm: shallow placement + sun + fertilizer = flowers

Plant Requirements (quick reference)

• Sun: Full sun, 6+ hours of strong midday light

• Container: 15–18"+ wide, shallow aquatic container (fabric pots preferred)

• Depth (soil surface → water surface): 6–10" (shallow = more flowers)

• Spread: ~3–5 ft with room

• Soil: Heavy loam topsoil only (no bagged mix, peat, “aquatic media,” or gravel)

• Water Temp (spring): Aim for ~70°F (21°C)+ at crown to break dormancy

• Hardiness: USDA Zones 6–11/12 (emerges later than standard hardies)

Care & Fertilizing (simple schedule)

• Fertilizer tablets: 6–8 tablets on the 1st & 15th of each month (May–September)

• How to apply: Press tablets 3–4" into the soil around (not on) the crown

• Maintenance: Trim spent blooms/yellow leaves; divide annually if crowded to maintain peak flowering

Water Lily Planting Tips

• Plant shallow (6–10") to warm the crown and ramp up buds

• Choose wide, shallow containers—more rhizome run = more flowers

• Keep surface water open and unshaded; pads are your “solar panels”

• Avoid splashing/aeration directly onto pads; still water shows blooms best

• Start with a normal feeding, then increase to ISG rates as growth surges

Do’s & Don’ts

Do

• Plant in full sun and heavy loam for best performance

• Fertilize twice monthly at ISG rates (1.5–2× standard hardy)

• Repot immediately on arrival; keep all parts wet while planting

Don’t

• ❌ Don’t use compost/peat mixes, “aquatic media,” or gravel (they float, rot, or smother crowns)

• ❌ Don’t let floating plants shade Luxor—light drives flowering

• ❌ Don’t plant too deep (>10–12") if you want frequent blooms

• ❌ Don’t place in cold spring water—ISGs stall below ~70°F at the crown

Helpful Links 

• Full Planting Instructions →

• Waterlily World® Fertilizer Tablets →

• PondGro™ Aquatic Loam Soil →

• Aquatic Containers →

• PondGro™ Fabric Pots →

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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.