Large Flowered Trillium, also called White Trillium, is easy to grow and will return faithfully year after year in optimal conditions, spreading gradually by seed if left undisturbed. The flowers become pink-tinted later in the season …
Large Flowered Trillium, also called White Trillium, is easy to grow and will return faithfully year after year in optimal conditions, spreading gradually by seed if left undisturbed. The flowers become pink-tinted later in the season, and finally give way to berry-like capsules. The foliage of this ephemeral will die-back to the ground by midsummer. White-Tailed Deer eat both the foliage and flowers which may be popular with deer because of the large, highly visible bloom.
Trillium Grandiflorum does best in partial shade among, deciduous hardwood trees. The leaves of the trees provide the perfect mulch. Soil that is moist but well-drained and high in organic matter is best. Trilliums will grow in clay soil, as long as the soil is not too heavy or wet. Space the bare root plants about 6 to 12-inches apart and about 2 to 4 inches deep. Trilliums can take a few years to become fully established.
Leave the leaves! This woodland species appreciates a generous covering of leaves in the fall – it is not necessary to shred the leaves. We recommend planting ephemerals – which we offer in bare root format – in early fall while the soil is still warm, or in early spring. Spring installations will have some time to develop before summer dormancy, but most likely they will not produce flowers the first year. An early fall planting allows the roots time to establish properly before winter, and gives the plants a stronger start the following spring.
Native plants can be grown outside of their native range in the appropriate growing conditions. This map shows the native range, as well as the introduced range, of this species.
Plant Shipping Rates: for plant orders up to $50 the shipping amount is $9.95. For plant orders from $50.01 and over, the shipping rate is 20% of the total plant cost.
Fall plant-shipping begins on September 9, 2024. The last day to order your plants for fall shipment is September 29.
During checkout, you will be asked to choose a Shipping Week for your plant delivery, from the dates that are available. The week that you choose will be included in your order confirmation email. When your plants ship you will receive an email that includes your tracking information.
I have never tried bareroot plants before. Do you provide instructions for success with bare root planting? Also, is fall a good time for bare root planting?
Yes, we do send instructions for bare root planting with every plant shipment. The planting brochure that we send can also be found here on our website: prairienursery.com/resources-guides/how-to-transplant-bare-root-plants/
Fall is a great time for installing bare root plants. Early spring is also fine. We recommend planting ephemerals – which we offer in bare root format – in early fall while the soil is still warm, or in early spring. Spring installations will have some time to develop before summer dormancy, but they might not have time to produce flowers the first year. An early fall planting allows the roots time to establish properly before winter, and gives the plants a stronger start the following spring.
I received my spring order today. It's very hot and dry in Northern Michigan. Can I wait to plant the trillium corms until the fall and should I refrigerate them until then?
The bare root material that you receive in the spring should be planted right away, in spring, even if the temps have warmed. By this time your planting area should be experiencing full shade. Make sure the Trillium corms are planted at least 4" deep. Prepare the soil so that it is loose, and weed-free. Loose, rich soil is best. Firmly tamp the soil around the corms. You are looking for good soil contact, and good depth, in well prepared soil. The planted area can be watered, but does not need to be kept wet. Mulch the area Generously with leaves. The leaves will help greatly in keeping the soil temps down.
If refrigerated now, the plant may experience that as an additional cold/warm cycle which could cause problems.
Does Trillium grow well near/under spruce and pines?
Yes, Trilliums will grow under pine trees and other conifers : White Pine, Red Spruce, Balsam Fir and Eastern Hemlock to name a few. Some spruce trees have branches that reach to the ground. In that case the trillium may not grow, because the descending branches would keep them from receiving the sunlight needed, in early spring.
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