Sun Gro Sunshine #4 Aggregate Plus Professional Growing Mix | 3.8cu ft - Compressed

Coarse-Perlite Growing Mix for Fast Drainage, 3.8cu ft

Nursery stock and cutting propagation both suffer when a mix holds too much moisture or lets salts build up between waterings, especially in crops that need frequent leaching to stay healthy. Sunshine #4 Aggregate Plus answers that with a coarse-perlite base engineered for high air capacity and fast drainage, so excess water and salts move through rather than sitting in the root zone.

This 3.8cu ft compressed bag is recommended for nursery stock, perennials, cutting propagation, hanging baskets, and interiorscapes, and includes RESiLIENCE, a silicon-enriched additive.

Key Features & Benefits

• Coarse Perlite Base — delivers high air capacity and fast drainage.
• Built for Frequent Leaching — moves excess water and salts through rather than holding them.
• Suited to Sensitive Crops — reduces overwatering and salt-buildup risk.
• Includes RESiLIENCE — a silicon-enriched additive carried across Sun Gro's professional Sunshine line.

Who Should Use Sunshine #4 Aggregate Plus

Growers producing nursery stock, perennials, cuttings, hanging baskets, or interiorscapes who need a fast-draining mix for water- or salt-sensitive crops will find Aggregate Plus suited to that need.

About Sun Gro Horticulture

Sun Gro Horticulture builds its professional Sunshine Mix line around drainage-specific formulas like Aggregate Plus, engineered for growers who need to leach frequently without waterlogging the root zone.

Frequently Asked Questions

What makes this mix drain quickly?

A coarse-perlite base that gives the mix high air capacity, letting water move through rather than pooling around the roots. That same structure is what makes frequent leaching practical without waterlogging the mix.

What crops is this mix recommended for?

Nursery stock, perennials, cutting propagation, hanging baskets, and interiorscapes. It's aimed at crops that are sensitive to excess water or salt buildup rather than general container gardening.

What does RESiLIENCE do in this mix?

It's a silicon-enriched additive included across Sun Gro's professional line, intended to support plant structure and resilience during production. It doesn't replace the mix's core drainage properties, which come from the perlite base.

How is this product packaged?

As a 3.8cu ft compressed bag, sized for professional greenhouse and nursery ordering rather than small retail counts. Compression also reduces shipping volume compared to a loose-fill bag of the same finished size.