Growing Perennials and Herbs in Containers: Expert Tips for Pots and Boxes

Container gardening lets you enjoy perennials and herbs anywhere—patios, balconies, rooftops. Follow these guidelines for thriving potted plants.

Choose the Right Plants for Containers

Rose Mallow / Hibiscus: Bold, tropical flowers (9+ inches) in red, pink, white. Needs rich soil, consistent moisture, full sun to part shade. Great for screening.

Foliage-First Perennials: Daylilies, peonies, phlox, coral bells, gas plant, astilbe, candytuft keep attractive leaves after bloom. Oriental poppies and bleeding hearts yellow post-bloom—interplant with fast annuals to fill gaps.

Climate Match: Daylilies and iris love heat; lupines, delphiniums, astilbes prefer cool conditions.

Incorporate Biennials for Quick Impact

Foxgloves, Canterbury bells, sweet William, verbascum bloom in year two, then can be replaced.

Buy Mature Plants for Instant Color

Nurseries offer perennials in temporary pots (tin, papier-mâché, fabric). Perfect for immediate impact in planters and raised beds.

Container-Specific Perennial Stars

• Acanthus (Bear's Breech): Dramatic foliage, tall white/pink spikes. Large pots, good drainage, full sun. Not hardy north without protection.
• Asters: Starry fall flowers in purple, pink, white. 9″–4′. Full sun, divide annually.
• Bearded Iris: Rainbow blooms, spear leaves. Divide clumps every 3 years.
• Chrysanthemums: Fall color powerhouse (Aug–Dec). Keep moist; move easily in bloom. Overwinter in cold frame or treat as annuals.
• Daylilies: Tough, adaptable, evergreen varieties for warm zones. Trumpet flowers daily over long season.
• Delphinium: Regal blue/purple/white spikes. Stake early. Pacific hybrids are stunning.
• Hostas: Shade lovers with bold foliage. 'August Lily' (fragrant white), 'Honey-bells' (purple spikes), 'Thomas Hogg' (white-edged leaves).
• Phlox: Summer color (July–Sept). Sun to part shade, consistent moisture. Pinch tips at 6–9″ for more blooms.

Herbs in Containers

Most culinary herbs thrive in pots: basil, thyme, rosemary, mint (contain it!), parsley, chives. Use well-drained soil, full sun, and harvest regularly.

General Container Care

Quality potting mix, drainage holes, consistent watering (containers dry fast), and slow-release fertilizer. Repot when root-bound. Overwinter tender perennials in protected spots.