House & Garden Bud-XL, 5 L

A Finishing-Stage Additive for Flower and Fruit Yield, 5 L

The final weeks of flowering are when a plant's flower and fruit development either finishes strong or falls short of what the earlier growth stages set up, and a standard base feed alone doesn't always give that finishing stretch the extra push it can use. House & Garden Bud-XL is formulated specifically for that finishing window, layered onto an existing base nutrient program during the last weeks of flowering to support flower and fruit growth and yield.

This 5 L size is sized for larger indoor grow rooms, matching the product to the scale of the operation using it.

Key Features & Benefits

• Formulated for the finishing weeks of flowering — timed for late-stage flower and fruit development rather than the full growth cycle
• Supports flower and fruit growth and yield — targets the specific demands of the finishing stage
• Layers onto an existing base nutrient program — designed as an addition, not a standalone or complete feed
• Available in 5 L — sized for larger indoor grow rooms

Who Should Use Bud-XL

Growers already running a base nutrient program who want additional finishing-stage support for flower and fruit yield during the last weeks of flowering will use Bud-XL as an addition to that program.

About House & Garden

House & Garden is a nutrient and additive brand established in 1990 by William Van De Zwaan, whose family had a background in Dutch horticultural glasshouse production; the company formulates its base nutrients and additives in small batches, filtering its process water through multi-stage ceramic filtration. Hydrofarm acquired House & Garden in 2021, and the brand's manufacturing and research operations are based in Humboldt County, California, building a product line of base nutrient systems and root, flowering, and growth additives sold to growers in dozens of countries.

Frequently Asked Questions

When should I start using Bud-XL?

Use it during the finishing weeks of flowering, layered onto your existing base nutrient program. Starting earlier than the finishing window isn't necessary, since Bud-XL is formulated specifically for late-stage flower and fruit development.

Do I still need my regular base nutrients?

Yes. Bud-XL is a finishing-stage supplement, not a standalone or season-long nutrient, so keep running your base feeding program and add Bud-XL on top of it during the last weeks before harvest.

What does Bud-XL help support?

It's formulated to support the growth and yield of flowers and fruits specifically during the finishing weeks of flowering. That's a different nutritional emphasis than the base feed used earlier in the growth cycle.

How do I add Bud-XL to my feeding schedule?

Mix it into your reservoir water alongside your base nutrients, following label directions for dosing at your reservoir size. Use an EC/PPM meter to confirm your total nutrient strength after adding it.

How is this size different from the others?

All Bud-XL sizes share the same formula and are used the same way. This 5 L size is sized for larger indoor grow rooms, so the main difference between sizes is how long the bottle lasts at a given dosing rate and reservoir size.