Kale and dill can grow in the same bed if both have enough light and space. Keep dill accessible for picking and allow for its taller flowering stems. Decide whether you want dill leaves, flowers or seed, because that choice changes how long the plant stays in the bed.
Give the pair distinct places in the bed
Reserve the full growing space for kale rather than sowing dill tightly around every stem. A short dill row at the edge is easier to thin, harvest and remove. Put tall varieties where they will not cast prolonged shade over young kale.
Read the mature height on the dill packet. A compact variety and a tall pickling dill do not need the same support or clearance. Mark a place where you can reach the kale’s lower leaves for inspection without breaking dill stems.
Sow dill where it will grow
University of Minnesota Extension recommends direct sowing dill because it does not transplant easily. Its guide uses ¼-inch seed depth and thinning to 10–12 inches for full-sized plants. Check the packet for your variety and intended use.
Follow local timing for both crops. You do not need to sow them on the same day. Established kale may already be in the bed when conditions suit dill. Keep the seed area moist until germination and thin crowded seedlings before they become tangled.
Choose a leaf or flower harvest
For tender dill foliage, pick before the umbrella-shaped flower clusters open. Sow another small patch if you want a continuing supply instead of expecting an aging flowering plant to remain a leaf crop.
For flowers or seed, leave selected plants standing and allow more height and time. Stake exposed tall stems if needed. Label these plants so they are not cut with the leaf harvest. If you do not want volunteer dill, collect mature seed or remove heads before seed disperses.
Set realistic expectations about insects
Flowering herbs can provide resources for beneficial insects, but their presence does not prove that kale will be protected from every pest. Do not replace inspection with a promise that dill repels aphids, caterpillars or mites.
Check the underside of kale leaves, identify any insects and note the amount of damage before choosing a response. A plant that feeds or shelters beneficial insects may also host insects of its own. Judge the actual garden conditions rather than a universal “good companion” chart.
Care for both crops without overfeeding
Water according to root-zone moisture and weather. Keep weeds from competing with young plants and use appropriate mulch without burying stems. Base feeding on the soil and crop requirements; neither plant is a fertilizer source for the other.
Harvest suitable outer kale leaves while leaving the growing center. If dill begins leaning over the kale, support it, harvest it or remove it according to your original plan.
For a bed intended mainly for salad leaves, compare kale and lettuce. That pairing uses a different height and harvest arrangement; it is not interchangeable with a dill crop grown to flower.
