How to Grow Narcissus romieuxii

Select a planting site for Narcissus romieuxii. This daffodil requires a period of freezing temperature during the winter. It is therefore hardy in U.S. Department of Agriculture zones 9 and below. It grows best in full sun, but can tolerate partial shade.

Prepare the planting site with loam that offers good drainage. Narcissus romieuxii can tolerate a soil pH in the range of 4.5 to 8.5, so it is seldom necessary to modify the pH of the soil. Work about 3 inches of compost into the soil a week before you plant the bulbs in the fall.

Obtain Narcissus romieuxii bulbs from a nursery. Ensure you select a cultivar that has the particular characteristics you desire. The bulbs should be firm without any soft spots.

Dig holes in the planting site at a depth equal to three times the height of the bulb. Plant the bulb in the hole, and fill it in with soil. Space the holes by 1.5 bulb widths.

Water the Narcissus romieuxii bulbs in the early spring after the last expected frost. Provide them with 1 to 2 inches of water each week during the growing season.

Apply a general fertilizer during the first growing season according to the instructions. Narcissus romieuxii plants develop their root system in the first year and should require little care after that point.