Wait until just after the first frost to lift your lily bulbs. Before you lift them, cut the decayed foliage back to about. 3 inches (0. 8 cm) above ground level. Lifting the bulbs and overwintering them indoors is particularly important for tender varieties of lily, such as tender colored callas.

Gently dislodge as much soil as you can from the healthy bulbs without damaging the roots. Rinse the bulbs under cool running water (eg from a garden hose) to remove the rest.

Avoid bringing the bulbs into a heated home to dry them out, as the sudden heat may come as a shock. Additionally, mold may be quick to grow in a warm environment. A temperature of 60–70 °F (16–21 °C) is ideal. The bulbs should not be exposed to sunlight.

You could also use a cardboard box, provided you make some ventilation holes to let air circulate. Avoid letting the bulbs touch each other — you can put moss or vermiculite between them to prevent this. The idea is to prevent one bulb from infecting another if it develops mold.

However, you should not allow the bulbs to dry out completely. If the bulbs appear dry or shrunken, mist them lightly with water to prevent them from drying out too much.

Your lilies are more at risk of rotting due to the winter rain than being damaged by the frost, so avoid replanting if the ground is waterlogged (even if the weather is mild. )

North America is split into 11 zones, according to the USDA Plant Hardiness Zone Map. Each zone is 10 °F (−12 °C) warmer (or colder) than the one adjacent to it. To find out which zone you live in, go to the National Gardening Association’s website and enter your zip code.

This usually means incorporating plenty of grit or perlite at planting time to improve drainage.

This means your bulbs will be less likely to sit in wet earth, so you can prevent them from rotting through the wet winter months.

It’s a good idea to incorporate some well-rotted manure or compost into the soil to improve its quality ahead of planting. {“smallUrl”:“https://www. wikihow. com/images/thumb/2/21/Overwinter-Lily-Bulbs-Step-14Bullet1. jpg/v4-460px-Overwinter-Lily-Bulbs-Step-14Bullet1. jpg”,“bigUrl”:"/images/thumb/2/21/Overwinter-Lily-Bulbs-Step-14Bullet1. jpg/aid4912217-v4-728px-Overwinter-Lily-Bulbs-Step-14Bullet1. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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<br />\n</p></div>"} It’s best to do this well ahead of planting the bulbs, if possible. A rich soil will help the plant produce flowers.

Continue feeding container-grown lilies throughout the flowering period.