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New shrubs and trees: water first, fertilizer only if the soil needs it

The first year decides whether a new shrub or tree makes it. Clemson's guidance is that water, not fertilizer, is the most important thing for a new planting, and that fertilizer at planting time only makes sense if a soil test calls for it.

How should I water a new shrub or tree?

Aim the water at the root ball. For the first year, Clemson says, the roots haven't spread into the surrounding soil, so water on the lawn around the plant doesn't reach them. Keep the root ball evenly moist, but not saturated, for the first few months.

Should I fertilize new plants when I plant them?

Only if a soil test shows a need. In that case Clemson suggests working slow-release nitrogen into the backfill or just outside the root ball. Established trees and shrubs in good soil may need little or no fertilizer, and Clemson advises against fertilizing drought-stressed plants in summer.

How much mulch should go around new plants?

Clemson calls for 2 to 3 inches of organic mulch over shrub plantings and 2 to 4 inches for trees, kept a few inches away from stems and trunks. Mulch piled against a trunk, the "volcano" look, damages the bark.

When is the best time to plant shrubs here?

Clemson says fall is the best season to plant shrubs in South Carolina for root growth and establishment.

How does Spring Green care for new plantings?

We don't install plants. Our tree and shrub program is four visits a year: a horticultural oil spray in January for scale insects, a deep root feeding with fertilizer and insecticide in February or March, and insecticide-and-fungicide sprays in May or June and again in July or August. See shrub insects and shrub disease.

Last updated 2026-09-25. Spring Green is owned by Stockton Wells.