Hydroponic Aponogeton: Sprouting Bulbs in Jars
Hydroponic aponogeton means sprouting the bulb in a jar of water or wet inert media plus letting it rest when growth slows. UF/IFAS Extension lists Madagascar lace, Aponogeton madagascariensis, among aquatic plants grown from bulbs, while University of Minnesota Extension covers small hydroponic setups.
The short answer
Hydroponic aponogeton starts from a bulb set in wet media in a jar. UF/IFAS notes bulbs usually float, so cover them when planting. It notes producers may hold bulbs dormant under refrigeration for about 8 weeks. Give warmth, bright light plus low nutrient water. Expect rest periods after months of growth.
Can aponogeton grow with leaves above water?
UF/IFAS describes some emergent aquatic plants as amphibious plus heterophyllous, which means their leaves look different above or below water. Leaves grown above water are sturdier than those formed underwater, it notes. Aponogeton leaves often look different above water than below.
What setup suits emersed aponogeton?
UF/IFAS notes aponogeton bulbs usually float, so they need to be buried or completely covered. University of California Master Gardeners list coir, perlite plus vermiculite as inert media, though Colorado State notes perlite floats.
| Factor | Target | Tip |
|---|---|---|
| Bulb | Covered with media | Bulbs float, per UF/IFAS |
| Media | Coir or vermiculite | Colorado State plus UC |
| Roots | 1/3 to 1/2 submerged | Minnesota |
| Rest | About 8 weeks cold | Producer practice, per UF/IFAS |
| Nutrients | Low | High levels feed algae, per UF/IFAS |
Source: UF/IFAS, Colorado State, UC Master Gardeners plus University of Minnesota Extension.
How much light does emersed aponogeton need?
UF/IFAS notes most aquatic plants are tropical plus need warmth with significant light. A bright window or grow light works. University of Minnesota Extension notes artificial light allows growing all year plus advises cutting light reaching the reservoir to limit algae.
How to: step by step
- Buy a firm aponogeton bulb from an aquarium shop.
- Set it in a jar of wet coir or vermiculite.
- Cover the bulb so it cannot float.
- Fill water so roots sit 1/3 to 1/2 submerged.
- Place under bright light.
- Lower light plus wait when leaves die back.
Troubleshooting
Leaves melt after the move: new emersed leaves replace underwater ones, per UF/IFAS notes on heterophyllous plants. Fresh growth follows.
Slimy roots or a sour smell: stale water. Replace the water plus rinse the roots.
Leaves die back after months: resting period. Lower light plus wait for new growth.
For media plus water care see hydroponic in different mediums, caring for your hydroponic system plus aquarium water for cannabis. Kind Seed Co also stocks cannabis seeds.
Sources
- Freshwater ornamental aquatic plant production in Florida (FA251), UF/IFAS Extension
- Water gardens: planting aquatic plants (PlantTalk 1026), Colorado State University Extension
- Hydroponics for the home gardener, UC Master Gardeners of Orange County
- Small-scale hydroponics, University of Minnesota Extension
FAQ
How fast does emersed aponogeton grow?
Growth depends on light plus warmth. UF/IFAS notes most aquatic plants are tropical plus need warmth with significant light. A sprouted bulb puts out leaves for some months, then slows. UF/IFAS notes producers may hold bulbs dormant under refrigeration for about 8 weeks before replanting them.
Can emersed aponogeton go back underwater?
UF/IFAS notes amphibious aquatic plants can grow leaves that look different above or below water. A plant moved back under water will likely shed emersed leaves plus grow new submersed ones. Make the change slowly plus give bright light while it adjusts.
Does aponogeton need fertilizer?
Very little. UF/IFAS notes high nutrient levels lead to algae, so it advises low nutrient water plus avoiding overfeeding. In a small jar or tray, a weak dose now and then is enough for aponogeton. Watch for green film on the media plus cut back if algae appears.
How often should the water be changed?
UC Master Gardeners advise checking nutrients, water level plus pH regularly in home hydroponics. Top up the water as it evaporates plus refresh it if it smells sour or turns cloudy. A full change every few weeks suits most aponogeton setups plus helps roots stay clean.
Why does my aponogeton bulb float?
UF/IFAS notes bulbs usually float, so they need to be buried or completely covered when planting. Press the bulb into wet coir or vermiculite plus cover it lightly. Colorado State notes peat plus perlite float in water, so those media can lift the bulb out of place.
