Incredible Grandma's Secret Garden 4.0 9 Plant Led Grow Box References. This sturdy model comes in two sizes. The new, revolutionary, grandma's secret garden 6.0 has been fully optimized to grow extremely healthy plants all year long.

Read honest and unbiased product reviews. Grandma’s secret garden 4.0 is a luxurious 3 foot tall, 9 plant led grow box that can grow any plant on earth. This beginner friendly, large grow box fits in almost any room in your.