
Kelp for the whole yard.
2.5 gal concentrate (F-style jug)
The season supply. The same Kelp Tonic as the 32 fl oz concentrate, in a 2.5-gallon F-style jug — one jug makes 640 gallons, enough to cover about 190,000 sq ft (4.4 acres).
Kelp Tonic is the product most gardens use most often — transplanting in spring, stress recovery through summer, general vigor throughout. The 2.5-gallon jug makes that affordable at any scale: 640 gallons from one jug, mixed into a watering can for containers or run through the Power Sprayer for beds, borders and lawns.
Cold mechanical extraction preserves the phytohormones, enzymes and amino acids found naturally in kelp, with no chemical residue.
| Dose | 1 tbsp (1/2 fl oz) per gallon |
| Power Sprayer dial | 1 Tbs |
| Makes | 640 gallons |
| Covers | About 190,000 sq ft (4.4 acres) |
| Refills | 2,560 refills of a 32 oz spray bottle |
| Dilution | 1:256 · 4 mL per liter |
Coverage based on Vegalab field application rates: sprays about 300 sq ft per gallon; Root Guard soil drench about 80 sq ft per gallon; Worm Stop drench about 190 sq ft per gallon; Soil Starter about 31 sq ft per gallon.
How much does one jug make?
640 gallons — enough to cover about 190,000 sq ft (4.4 acres), or 2,560 refills of a 32 oz spray bottle.
Can I use it on the lawn?
Yes. Set the Power Sprayer to 1 Tbs and treat the whole lawn in one pass.
How often can I apply it?
Every two weeks through the season, and any time plants are under stress.