Seeds from this Oriental Lily Lilium Stargazer. Oriental lilies are known for their fragrant perfume, blooming mid to late summer. Stargazers are easy to grow and do best in full sunlight. They have a fast growth rate and should be planted in full sun in well drained loamy or sandy soil. When mature, Stargazers can grow to a height of 36 inches with a spread of 10 to 14 inches with 2 to 8 flowers per stem. Zones 4 to 9.