Grow Hosta tardiana 'June' for bold, variegated foliage that brightens shady beds and borders. You will get a neat, medium-sized mound with thick leaves showing golden centers and blue-green margins, plus airy stems of pale lavender flowers in mid to late summer.
Plant it in part shade to full shade, where morning sun or dappled light helps bring out the strongest leaf color. Give it evenly moist, well-drained soil enriched with organic matter; consistent moisture keeps the leaves looking their best, especially during hot or dry spells. Mulch lightly to conserve moisture, but keep mulch off the crown.
Space plants so the clump can mature to roughly 24-30 inches wide. Expect a foliage mound around 15-18 inches tall, with flower scapes rising above. Divide established clumps in spring as shoots emerge or in early fall to rejuvenate and to create new plants. Watch for slugs and snails, and water at the soil line to help keep foliage clean. In late fall, let the foliage die back naturally, then remove spent leaves to tidy the planting area.