How to Grow Tiger Lilies, a Cottage Garden Favorite
No cottage garden would be complete without the mid-summer blooms of tiger lilies. Their bright orange flowers with brown spots, distinctive recurved petals and long stamens add color and dimension to the garden.
What are Tiger Lilies?
Tiger lilies are originally from Asia, native to China, Japan and Korea where they were grown as food. It was the bulb, not the flower that was eaten. They were introduced in Europe first in the 17th century but didn’t catch on. They were re-introduced in the early 19th century where they quickly made themselves at home in cottage gardens. It wasn’t long before they had made their way across the ocean to North America where they spread across the continent with the settlers who braved the wilds of the West. Thanks to the plants’ adaptability, they have naturalized throughout much of the Northeast.
Tiger lilies are a natural fit in the cottage garden. They are hardy through zone 3, are easy to grow and propagate readily either from bulbits or division. They are tall, reaching a height of 3 to 4 feet. The plants flower profusely, producing up to a dozen blossoms on each plant ranging in color from yellow to orange to red and even pink. There is a new cultivar that has double flowers that also come in the same colors.
Plant Tiger Lilies in a Bed by Themselves
It is not recommended that you grow tiger lilies in the same bed as other kinds of lilies. The hardiness which makes them such a good fit in the cottage garden makes them a danger to other lilies. Tiger lilies are immune to most viruses and diseases that plague lilies, especially the deadly mosaic virus. In the garden they act like a Typhoid Mary, spreading viruses and diseases to which they are immune to other types of lilies. So grow your tiger lilies in a bed that contains no other kinds of lilies and allow them to be a star on their own!
How to Grow Tiger Lilies
All lilies are planted in the fall, a month before your first frost. The bulbs need a period of cold weather to stimulate growth in the spring. If you live in zone 9 or further south, you will need to chill your bulbs before planting. Place them in a plastic bag to prevent them from drying out in your refrigerator for about a month before planting them in your garden in the spring, rather than the fall.
Choose a sunny spot in your garden with well-drained soil. Tiger lilies will tolerate some shade but they grow best in full sun which is 6 to 8 hours of sunlight daily. Plant the bulbs 4 inches deep and 8 to 10 inches apart. It is recommended that rather than planting them singly, that you plant them in groups of 3 or 5.
Tiger lilies love sun but prefer to have their roots shaded. A thick layer of mulch will keep the roots cool and moist. You can also plant your bulbs amongst shorter perennials whose foliage will spread and cover the base of your lilies shading their roots.
Thanks to the weight of the flowers, the plants will need to be staked to keep them from falling over. Bloom time is early summer.
After flowering, the plants produce small black bulbits along the stems which look like large seeds but are actually immature bulbs. When ripe, they will fall to the ground and start a new plant. Or you can harvest them yourself and plant them where you want more tiger lilies. Plant these small bulbits 2 inches deep. It will take 3 to 4 years for the bulbits to produce plants large enough to flower.
How to Divide Tiger Lilies
After a few years, you will notice that your tiger lilies are not blooming well. It’s time to divide them! After the foliage dies in the late summer, mark where the plants were. Then in the fall, a month before your first frost, using a garden fork, carefully dig up the bulbs. The bulbs grow similarly to garlic with a main large bulb and then surrounding smaller bulbs that look like cloves of garlic.
Carefully separate the smaller bulbs from the main bulb and replant, 2 inches deep and 8 to 10 inches apart. These smaller bulbs are not planted as deeply as the large mature bulbs you originally planted. The smaller bulbs will take up to 2 years before blooming. After you have separated all of the small bulbs from the large bulbs, replant the large bulbs 4 inches deep and 8 to 10 inches apart.
© 2014 Caren White