how deep to plant nasturtium seeds

Plant nasturtium seeds about ½–1 inch deep (roughly 1–2.5 cm), then firm the soil lightly on top.

Quick Scoop

• Ideal depth: ½–1 inch / 1–2.5 cm.
• Shallower end (about ½ inch) works well in heavier or cooler soils.
• Slightly deeper (up to 1 inch) is fine in lighter, sandy soils.
• Cover with loose, fine soil and keep it evenly moist, not soggy.
• Space seeds about 8–12 inches (20–30 cm) apart so plants have room to sprawl.

Imagine tucking a pea under the soil: not so deep it gets “lost,” but deep enough that light and drying winds can’t reach it easily.