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Balcony Herb Trough: 80cm Planter Layout and Care

An 80×17.5×12 cm trough fits 4–5 herbs if chosen and managed correctly.

Recommended Layout

PositionHerbReason
Corners (2)ChivesPerennial, clump, cut to 2" in fall.
Ends (2)Thyme (creeping)Trails over edge, drought-tolerant.
CenterParsleyBiennial, taproot needs depth.
Optional (if 5th)Basil (dwarf 'Spicy Globe')Compact, but needs 16h light/heat.

Exclude: Mint (invasive), Rosemary (needs 12"+ depth, winter protection), Lavender (needs lime, space).

Universal Care

  • Sun: East/southeast, 6h+ morning.
  • Soil: 50% potting mix, 30% compost, 20% perlite.
  • Water: When top 1" dry. Weekly fish/seaweed feed.
  • Prune: 1/3 from tips every 3 weeks all herbs.
  • Winter: Chives/thyme/parsley survive outdoors (mulch). Basil dies.

Fertilizer

Liquid fish fertilizer (Home Depot/Lowe's). Seaweed/fish combo better.

Start with 4 herbs. Add basil only if you have grow lights.

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