Whole plant
Overall shape, height, branching and growth habit.
Flowers
Petunia growing guide
A colourful warm-season flowering plant widely grown in beds, containers and hanging baskets. Petunias flower heavily in good light and benefit from regular feeding and occasional trimming.
7-10 daysGermination
VariesHarvest
30 cmSpacing
0.1 cmSow depth
FullSun
TenderFrost
2.5 cm/weekWater
5.5-6.5pH
Planting calendar by climate
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Botanical reference
Compare the whole plant first, then check the leaf, flower and harvest detail to identify what Petunia should look like as it grows.
Leaf detail
Leaf shape, edges, colour and vein pattern.
Flower detail
Flower colour, structure and where blooms appear.
Harvest / detail
Fruit, root, seed, pod or the strongest identifying feature.
Good companions
No companion data yet.
Avoid near
No avoid list yet.
Growing note
Petunia seed is tiny and should be surface-sown or barely covered. Trim straggly plants to encourage branching and another flush of flowers.
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