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St. John's Wort 'Sunny Boulevard®', Saint {2-Gallon pot}
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Hypericum × 'Sunny Boulevard®' (AKA Hypericum kalmianum 'Sunny Boulevard', Kalm's St. John's Wort 'Sunny Boulevard', Kalm's Hypericum 'Sunny Boulevard')
Pronunciation: hy-PER-i-kum eks SUN-ee BOO-luh-vard
Product: 201449
Shipping description: This product cannot be shipped to ID, and cannot be shipped from early May to early October to AZ, CA, MT, NV, OR, UT, or WA.
NOTE: Shipments to AZ, CA, MT, NV, OR, UT, or WA require 7-10 days to prepare the required paperwork.

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1 - 9: $87.97 each10 - 99: $83.57 each
100+: $79.17 each
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Content note — AI-assisted: Some images, descriptions, and specs on this page may have been generated with AI and might not be perfect. If you’re new to this plant, please check verified photos [here] and feel free to contact us with questions.
Sunny Boulevard St. John's wort (Hypericum × 'Sunny Boulevard®') is a compact, mounding shrub grown for its bright yellow summer flowers and tidy, fine-textured foliage. Your plant typically matures about 24-36 inches tall with a similar spread, creating an easy, low-maintenance accent for borders, slopes, and foundation plantings.

Plant it in full sun to part shade. More sun generally supports the best flowering and a denser habit, while light shade is tolerated. Provide average moisture and well-drained soil; once established it can handle some drought, but it will look best with occasional deep watering during extended dry periods.

Bloom begins in mid to late summer, with clusters of golden-yellow flowers that stand out against the narrow leaves. After flowering, seed capsules may form and can add late-season interest. If you want to shape the plant, prune lightly after bloom; otherwise, keep maintenance simple by removing any winter-damaged stems in early spring as new growth begins.

This selection is associated with Kalm's St. John's wort, a plant native to parts of the Great Lakes region. Use it as a small hedge, along paths, or mixed with perennials and ornamental grasses for a long season of color and reliable structure.

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