Grewia plants generally thrive in well-drained soil, full sun to partial shade, and moderate moisture levels. Start by preparing a suitable planting area, turning over and amending the soil if necessary. Position grewia plants, ensuring sufficient space between them for growth. Water routinely after planting, but avoid overwatering. While these guidelines apply broadly, different species within the grewia genus may have individual requirements, so it's important to understand the needs of the specific species you are planting.