Lilies are one of the more rewarding bulbs for Zone 11. Unlike tulips and daffodils, many lilies — especially Asiatic and Oriental types — need far less winter cold, and some will flower in the tropics with little or no pre-chilling. Their tall stems and large, fragrant flowers make a dramatic display, and they are excellent cut flowers.
Lilies still prefer the cooler months in Zone 11, and they need good drainage and airflow to stay healthy in humid air. The planting calendar hub shows how Zone 11 timing works month by month, and our guide to when to plant dahlias in Zone 11 covers another bold summer flower for the same sunny bed.
Zone 11 at a glance
USDA Zone 11 covers the warmest, most tropical parts of the United States — Hawaii, southern Florida, Puerto Rico and the warmest coastal pockets. Winters are warm, with average winter lows of 40 to 50°F, and the growing season never really ends.
Zone 11 is frost-free year-round: there is no average last spring frost and no average first autumn frost. That means you plant by heat and by the wet and dry seasons, not by frost dates. These are USDA zone averages, not exact figures for any one garden — always check your local extension service and the forecast before planting.
| Detail | Zone 11 guidance |
|---|---|
| Average winter low | 40 to 50°F |
| Average last spring frost | Frost-free (no frost dates) |
| Average first autumn frost | Frost-free (no frost dates) |
| Days to germination | 14–28 days |
| Days to maturity | 90–120 days |
| Sowing | both |
| Sun | full sun |
| Soil pH | 6.0–7.0 |
| Spacing | 12–18 inches |
| Water needs | moderate |
| Cold tolerance | hardy |
When to plant lilies in Zone 11
Plant lilies in Zone 11 in the cooler months, roughly November through February, so bulbs can root before the heat of summer. Asiatic lilies are the most reliable in the tropics, while Oriental lilies flower well too but prefer a cooler, shadier spot. Bulbs sprout in 14–28 days, and plants flower in 90–120 days from planting. Some varieties benefit from a short pre-chilling in the refrigerator — check the bulb packet or your local extension service for guidance for your variety. Zone 11 is frost-free, so there is no last frost date; check your local extension service and the forecast before planting.
Starting lilies in Zone 11
Start lilies from bulbs, never from seed — seed-grown lilies take years to flower. Buy firm, healthy bulbs, and plant them 12–18 inches apart, about six inches deep, with the pointed end up. Lilies like their roots cool and their heads in the sun, so plant them behind low-growing companions that shade the soil. Pots work well in Zone 11, as they are easier to move into shade in the hottest months. Water after planting, then water sparingly until shoots appear — wet soil before sprouting rots bulbs.
Soil, spacing, sun and water
Lilies need full sun and rich, well-drained soil with a pH of 6.0–7.0. Drainage is critical in Zone 11: bulbs rot in wet soil, so dig in plenty of compost and grit before planting, and plant on a slight mound or in raised beds if your soil is heavy. Water needs are moderate: water deeply at the base in dry spells, keeping the leaves dry, and mulch to hold moisture and keep the roots cool. Never let bulbs sit in soggy soil in the rainy season.
Companion planting
Good companions for lilies include lavender, marigolds, garlic and chives. Low-growing marigolds shade the soil and keep lily roots cool, while garlic planted nearby is traditionally said to help keep bulb pests down. Lavender draws in the bees that visit lily flowers. Keep lilies away from other bulbs that share diseases, and give them space for airflow. The companion planting finder can suggest combinations for your whole garden.
Pests and problems
The common pests to watch for with lilies are aphids, slugs and cutworms. Aphids cluster on young shoots — wash them off with a strong jet of water. Slugs and snails chew shoots and flowers at night in the wet season; protect young plants with a ring of coarse grit or pick slugs off by hand. Lily beetles, where present, are bright red and easy to spot — pick them off by hand. If you are unsure what is damaging a plant, the pest identifier helper can narrow it down.
Harvest and storage
Harvest lilies 90–120 days after planting, when the first buds colour and open. Cut lilies in the morning, when they are fresh, cutting the stem low but leaving at least a third of the stem on the plant so the bulb can store energy — they will last about two weeks in a vase. Remove the pollen stamens if you bring lilies indoors, as the orange pollen stains everything it touches. Leave the leaves after flowering so the bulb can store energy for next year; in the coolest corners of Zone 11, lilies may return for a second season.
Asiatic or Oriental lilies for Zone 11?
Asiatic lilies are the safer choice for most Zone 11 gardens. They are the hardiest, need the least chilling, flower earliest, and come in bright, unscented colours — perfect for a tropical bed. Oriental lilies are taller, with huge, heavily scented flowers in white, pink and crimson, but they prefer cooler conditions and a shadier spot, and they are fussier about drainage. If you have a cool, sheltered corner, try Orientals for their perfume; for a sunny bed and reliable flowers, plant Asiatics. Both make superb cut flowers, and both are worth the small effort of buying fresh bulbs each year.
Frequently asked questions
When should I plant lilies in Zone 11?
Plant bulbs in the cooler months, roughly November through February, so they root before summer heat. Asiatic lilies are the most reliable in the tropics. Bulbs sprout in 14–28 days and plants flower in 90–120 days.
Do lilies need pre-chilling in Zone 11?
Many Asiatic lilies flower without chilling, but some varieties benefit from a short spell in the refrigerator. Check the bulb packet or your local extension service for guidance for your variety.
Will lilies come back next year in Zone 11?
Sometimes, in the coolest corners with excellent drainage. Leave the leaves after flowering so the bulb stores energy, and do not overwater in the rainy season.
Why are my lily bulbs rotting?
Usually wet soil or watering before shoots appear. Plant in raised beds or pots with gritty, free-draining soil, and do not water until you see shoots.