Minimal care is required for existing, fully grown chive plants.
While chives are resistant to drought, they must be provided regular watering for high yields during the growing season. Thoroughly Soak the soil when watering.
The small bulbs of Chives grow near the surface of the soil, so use a mulch to preserve humidity and keep the weeds down.
In late spring or early summer, if your soil isn’t already abundant in nutrients, top-dress with a nitrogen-heavy fertilizer for proper growth.
Make sure to pick them after the flowers bloom, so the seeds don’t scatter all over your yard.
Foresee separating the plants in the spring every 3 to 4 years. If split regularly, the chives are even more successful. Divide them into clumps of at least 10 small bulbs, and allow divided plants to grow a few weeks before harvest.