Build Raised Beds That Last and Produce
Raised beds are the fastest way to perfect soil, easy harvests, and tidy garden design — here is how to build them right.
Why it works
Raised beds solve nearly every common garden problem: poor soil, bad drainage, weed pressure, back strain, and aesthetic chaos. By elevating the growing area and filling with a custom soil mix, you bypass whatever clay, sand, or rocks your native soil contains. Raised beds warm up faster in spring (extending the growing season), drain better than flat ground, and create clear boundaries that keep gardens tidy. They are wheelchair-accessible at 24+ inches, kid-friendly, and endlessly configurable.
How to achieve this look
Choose material: untreated cedar or redwood lasts 10–15 years; galvanized steel lasts 20+; composite lumber never rots. Build to 4 feet wide maximum (so you can reach the center from both sides) and any convenient length. Height of 12 inches is minimum; 18–24 inches is ideal for root depth and reduced bending. Line the bottom with hardware cloth to deter burrowing pests. Fill with a mix of 60% topsoil, 30% compost, and 10% perlite or coarse sand. Top-dress with 2 inches of compost annually. Install drip irrigation for consistent moisture. Orient beds north-south for even sun exposure.
Arden shows you how raised beds will look in your garden. Preview different materials (wood, steel, stone), heights, and layouts before committing — see the complete kitchen garden before building a single bed.
"Finally an app that understands outdoor spaces. Every garden plan turned out beautiful."
-- Priya K.
Häufige Fragen
Q1 What is the best wood for raised beds?
Untreated western red cedar — naturally rot-resistant, lasts 10–15 years, and contains no chemicals. Redwood and black locust are alternatives. Avoid pressure-treated lumber near edibles (modern CCA-free treatment is safer but still debated).
Q2 How deep should raised beds be?
Minimum 12 inches for most vegetables. 18–24 inches allows deep-rooted crops like tomatoes and carrots to thrive and reduces bending. For accessible/wheelchair beds, build to 24–30 inches.
Q3 What soil mix goes in raised beds?
The classic raised bed formula: 60% quality topsoil, 30% compost, and 10% perlite or coarse sand for drainage. Avoid bagged "garden soil" alone — it compacts. Top-dress with fresh compost each spring.
Q4 Do raised beds need drainage?
Yes. Leave the bottom open (no liner on soil contact) or drill holes if building on a hard surface. The soil mix should drain freely. On heavy clay, add a 2-inch gravel layer at the bottom.