sweet William (Dianthus 'Stagirond' RONDO) plant — close-up photo
Moderate to grow

sweet William

Dianthus 'Stagirond' RONDO

Overview

The sweet William (Dianthus 'Stagirond' RONDO) is an amazing flowering perennial. Its brilliant deep purple blooms have wide, frilly centers, which make them a true garden standout. The unusual flower form, combined with the clove-like fragrance of the gorgeous flowers, will keep you in awe. What's more, its strong, upright habit and vigorous foliage make it easy to care for and maintain. Sweet William also produces a bounty of blooms that will last from late spring to frost and attract both hummingbirds and butterflies to your garden. With its splendid color and unmistakable fragrance, this stunning flower brings a special beauty to any space!

Care Guide

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Watering

When watering Sweet William plants, it is important to give them the right amount of water but not too much. Aim for roughly an inch of water per week during the summer months, more in hotter months, and less in cooler months. It's important to keep the soil evenly moist but not soggy. During the winter months, only water if the soil appears dry. Water slowly and deeply to penetrate the root system and encourage healthy growth. You may need to adjust the amount and frequency of watering depending on the temperature and humidity.

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Light

Sweet William (Dianthus 'Stagirond' RONDO), like many other plants, thrive best in full sun conditions when provided with 6 to 8 hours of direct sunlight per day. If this is not possible, try to provide as much sunlight as possible for your Sweet William. If the location of the Sweet William is shaded, it may suffer from a lack of flowering and/or inadequate growth. If the Sweet William is in an area that has at least 6 to 8 hours of direct sunlight, it should do well.

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Temperature

Hardiness zone 4–8.

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Pruning

Sweet William (Dianthus 'Stagirond' RONDO) should be lightly pruned in the early spring, just before new growth begins. Lightly pruning means removing any dead or damaged stems and flowers as well as cutting back the foliage growth to maintain a desired shape. Bloom time is May through June, so be sure to prune before then to ensure optimal flowering! If necessary, you can do some light touch-up pruning after the blooms have faded in late summer or early fall, but be sure not to cut too much or else you won't have many flowers the following year.

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Propagation

Division, Cutting, Layering Propagation, Seed Propagation

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