Swallowtail Garden Seeds Watermelon Coleus

Yes, but with a caveat. While they are bred to be more sun-tolerant than traditional coleus, they thrive best in full sun only in high-humidity climates. If you live in a drier, hotter region, stick to filtered or part shade to prevent the foliage from scorching.

Pelleted seeds are coated in a clay-based material to make them larger and more uniform in shape. This makes them much easier to handle, see, and space out during planting compared to tiny, dust-like raw coleus seeds.

Coleus prefer consistently moist soil. You should water them whenever the top inch of soil feels dry to the touch, especially if you are growing them in containers, which tend to dry out faster than garden beds.

For the best foliage growth, yes. Removing flower spikes as they appear throughout the season encourages the plant to put its energy into creating lush, colorful leaves. However, you can leave a few spikes late in the season if you want to attract hummingbirds and butterflies.

You can expect these plants to reach a mature height of about 20 inches. Their vigorous, well-branched habit means they will fill out nicely at that height rather than growing into a single, spindly stem.