Nymphaea 'August Koch' (Tropical Water Lily)
Water Lily 'August Koch', Water Lily 'August Koch', Tropical Nymphaea
Nymphaea 'August Koch' (Water Lily) is a day-blooming aquatic perennial boasting nearly round, olive green, unevenly serrated leaves, up to 12 in. wide (30 cm), with wavy edges. Floating on the surface of the water, they create a lovely backdrop for the profuse, cup-shaped flowers, 4-6 in. across (10-15 cm). Their 22-25 petals are rich blue while the sepals are lilac-purple. Each pleasantly fragrant blossom lasts 3-4 days, opening in the morning and closing by sundown. Blooming from summer into fall, August Koch is very free-flowering, highly viviparous, and produces many flowers over a long season. This tropical nymphaea is suitable for medium to large water gardens.
- Grows up to 8 in. tall (20 cm) and 4-6 ft. wide (120-180 cm).
- Water depth: 6-18 in. (15-45 cm).
- Performs best in full sun in undisturbed water. Appreciates some part shade in hot summer areas where daytime temperatures reach 100ºF (35ºC). Needs protection from wind.
- Plant tubers in spring, with the crown slightly above the soil surface, after the water temperature has warmed to about 70ºF (20ºC). Feed every 2-3 weeks with a proprietary aquatic fertilizer.
- Deadhead and remove yellow leaves regularly.
- No serious pest or disease issues. Keep an eye out for water-lily beetle, water lily aphid, brown china-mark moth, false leaf-mining midge, crown rot, brown spot and water lily leaf spot.
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Requirements
Hardiness | 9
– 11 |
---|---|
Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2 |
Plant Type | Aquatic Plants |
Plant Family | Nymphaea - Water Lilies |
Exposure | Full Sun, Partial Sun |
Season of Interest |
Summer (Early,Mid,Late) Fall |
Height | 6" – 8" (15cm – 20cm) |
Spread | 4' – 6' (120cm – 180cm) |
Spacing | 48" – 72" (120cm – 180cm) |
Water Needs | High |
Maintenance | Low |
Soil Type | Clay, Loam |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Poorly Drained |
Characteristics | Fragrant, Showy |
Garden Uses | Ponds and Streams, Water Gardens |
Simon Groewe/Shutterstock
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Requirements
Hardiness | 9
– 11 |
---|---|
Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2 |
Plant Type | Aquatic Plants |
Plant Family | Nymphaea - Water Lilies |
Exposure | Full Sun, Partial Sun |
Season of Interest |
Summer (Early,Mid,Late) Fall |
Height | 6" – 8" (15cm – 20cm) |
Spread | 4' – 6' (120cm – 180cm) |
Spacing | 48" – 72" (120cm – 180cm) |
Water Needs | High |
Maintenance | Low |
Soil Type | Clay, Loam |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Poorly Drained |
Characteristics | Fragrant, Showy |
Garden Uses | Ponds and Streams, Water Gardens |