Building Raised Beds with Stackable Concrete Blocks: Plastic Liner, Soil Volume, and Planting Roses

Follow-up on raised beds with stackable blocks.

Plastic Liner

• Use heavy-duty black plastic (like thick garbage bags), not clear.
• If climate is wet, punch drainage holes in bottom.
• Prevents weeds; holds moisture (good in drought-prone areas).

Height & Soil

• Two tiers (blocks) is sufficient.
• Soil: ~3 largest bags from Lowe’s per bed; buy more if needed.

Roses in Raised Beds

Unusual but possible. Roses usually need support (trellis, arbor). If planting roses, provide structure. Annual bedding plants are more typical.

Plastic thickness: heavy-duty garbage bag gauge.