Oasis Sweet Corn seedlings (Zea mays) produce long cobs filled with sweet, golden kernels. Supplied in a Vegie Patch punnet, these high-yielding sweetcorn plants are suited to a warm, sunny vegetable garden with fertile, well-drained soil.
Plant during spring and summer when conditions are warm and frost risk has passed. Allow room for plants to reach approximately 1.8 metres tall, and provide regular watering and feeding to support growth and cob development.
Planting and growing guide
| Plant | Sweet corn — Zea mays |
|---|---|
| Supplied as | Live seedlings in one Vegie Patch punnet |
| Position | Full sun |
| Planting season | Spring to summer, depending on local conditions |
| Approximate height | 180cm |
| Plant spacing | 25–30cm apart, following the Oasis label |
| Soil | Fertile, well-drained soil enriched with organic matter |
| Harvest guide | 14–16 weeks according to Oasis; timing varies with conditions and seedling maturity |
| Frost tolerance | Frost sensitive |
Caring for sweet corn seedlings
- Prepare the soil with compost or other well-rotted organic matter before planting.
- Arrange plants in a block of short rows to improve wind pollination.
- Water regularly, paying particular attention during flowering and while cobs are developing.
- Feed regularly with a suitable vegetable fertiliser. Oasis notes that sweet corn responds well to liquid feeding; follow the fertiliser's application directions.
- Protect young seedlings from snails and avoid damaging shallow roots when weeding.
- Support plants if strong winds cause them to lean or loosen in the soil.
Oasis lists squash, beans, cucumber and lettuce as companion planting options. Allow enough space for each crop to grow without overcrowding.
Frequently asked questions
Why should sweet corn be planted in blocks instead of one long row?
Sweet corn is wind-pollinated. A block of short rows places more plants close to one another, helping pollen reach the silks and improving the chance of well-filled cobs. A single isolated plant or long, narrow row may pollinate poorly, leaving gaps where kernels have not developed.
How do I know when sweet corn is ready to harvest?
Use the supplier's 14–16 week guide as an estimate, then check the cobs. When the silks turn brown, gently peel back a small section of husk and pierce a kernel with your fingernail. A milky liquid indicates it is ready; clear liquid means it needs longer, while a thick, doughy texture indicates it is past its best. Pick close to when you plan to eat it for the best sweetness.
Video: Growing spring vegetables
This general spring vegetable-growing video from Oasis Horticulture is featured on the supplier's Sweet Corn product page.
Please note: Seedling size and appearance vary with growth stage and season. Product photographs are a guide.
Disclaimer: Always read and follow the instructions on the product packaging and/or seek expert advice before use, and don't depend on information on this page that may have errors or be outdated.