Correct care of Sweet William perennials increases the chance of reseeding, as described in the section on caring for Sweet William.
Seeds that claim to be annuals (flowering and dying within one year) may or may not live up to the promise, depending on the variety and how it reacts to your local climate.
Garden soil pH kits are available at garden supply stores or online. Again, this is not a mandatory tool for growing Sweet William, which are fairly adaptable when it comes to soil pH.
If you are transplanting seedlings, simply transfer the soil around the roots into a hole twice as wide as the soil ball, then refill. Take care not to bury any part of the seedling’s stem; the plant should be buried to the same level it was before.
Sweet William plants can rot if exposed to too much moisture, so be careful not to over-water. The soil should never feel soggy or contain pools of water.
It’s usually a good idea to dilute the fertilizer even more than specified on the container.
Note: if you are planning to eat the Sweet William flowers or feed them to a pet, do not treat with any type of pesticide.
Be aware that some flower varieties are hybrids of multiple plants, and may produce seeds that grow into plants with different appearance or characteristics than the parent plant.
Newly planted cuttings take time to form roots. Keep them in a warm, moist area away from direct sunlight to prevent them drying out while this happens. A few days underneath a transparent plastic bag or container may help create the moist conditions it needs. [10] X Research source
