Sweet Summer™ Panicle Hydrangea Tree Form

Sweet Summer™ Panicle Hydrangea Tree Form is a trained presentation of cultivar 'Bokrathirteen' (Plant Patent PP21,778), separate from the same cultivar’s multi-stem shrub form. Its stiff, upright stems hold conical panicles that emerge green, open white, and develop pink tones as the flowers age, as described in [Johnston’s tree-form listing](https://www.johnstonplants.com/product-page/hydrangea-paniculata-bokrathirteen-pp-21-778-sweet-summer-hydrangea-tree) and the [plant patent](https://patents.google.com/patent/USPP21778P2/en). ## Form and display The trained tree form keeps the cultivar’s showy, upright panicles above a clear stem. The flowers can be cut for fresh arrangements or drying, or left on the plant as their color deepens into fall, as noted in the [tree-form profile from Outdoor Design & Living](https://www.outdoordesign.com/pages/hydrangea-paniculata-sweet-summer-tree-form). This tree-form product is distinct from the shrub listing, although both carry the same cultivar. ## Growing conditions Plant in full sun to part shade and moist, rich, well-drained soil. The Arbor Day Foundation lists Sweet Summer in USDA zones 4–9. [NC State Extension](https://plants.ces.ncsu.edu/plants/hydrangea-paniculata/) notes that panicle hydrangeas tolerate more sun than other hydrangea species, bloom on new growth, and benefit from mulch over their shallow roots. ## Maintenance Prune in late winter or spring if crown shaping is needed; flowering occurs on current-season growth. Mulch the root zone to conserve moisture and water during establishment.