🌱 Compact Protection for Serious Seed Starting — 6ft x 4ft Polycarbonate Greenhouse with Rain Gutter & Roof Vent, Multi. Give your seedlings, herbs, and tender plants a head start without taking over the whole backyard. This 6x4 walk‑in greenhouse is perfectly sized for patios, decks, or a sunny corner of the garden. The rugged aluminum frame resists rust, while twin‑wall polycarbonate panels provide safe, diffused light that blocks harmful UV rays. An adjustable roof vent lets you regulate temperature and humidity, and the integrated rain gutter channels water away to keep the foundation dry. Whether you're extending the growing season or protecting delicate flowers from frost, this greenhouse creates the ideal microclimate for thriving plants — all in a footprint that fits your space.