Pineapple-weed prefers consistently moist soil but can tolerate short periods of dryness once established. Water deeply when the top inch of soil feels dry. Avoid waterlogged conditions, which can lead to root rot.

Reduce watering in cooler months.

Pruning is generally not necessary for pineapple-weed. However, if the plant becomes leggy or overgrown, light trimming can encourage bushier growth.

Deadheading spent flowers can improve appearance and prevent unwanted self-seeding, though it is not essential for plant health.

Pineapple-weed is easily propagated by seed. Sow seeds directly outdoors in early spring or fall. Germination is typically rapid.

It readily self-seeds in suitable conditions, often spreading like a groundcover, so collecting seeds for propagation is rarely needed.

As a fast-growing annual, repotting is typically only relevant if starting seeds indoors in containers. Use a standard potting mix and transplant seedlings into the garden once the danger of frost has passed.

Established plants in the ground do not require repotting.