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TDS Level

Here’s a week-by-week TDS (Total Dissolved Solids) chart for leafy vegetables (like lettuce, spinach, kale, basil) and fruity vegetables (like tomatoes, peppers, cucumbers, eggplants) in aeroponics, adjusted for summer and winter conditions:

Summer

  • Leafy greens grow faster in summer but are more sensitive to nutrient burn, so a lighter TDS is ideal.

  • Tips for Summer:

  • Increase misting frequency to keep roots cool.

  • Ensure proper ventilation to avoid heat stress.

  • Watch for faster water evaporation, which may concentrate TDS. Adjust by topping up with plain water if needed.

Leafy Vegetables TDS Range
Week
Growth stage
TDS Range
Week 1
Seedling
400-500
Week 2
Early Vegetative
500-600
Week 3
Late Vegetative
600-700
Week 4
Harvest
700-800
Fruity Vegetable TDS Range
Week
growth stage
TDS Range (PPM)
Week 1
Seedling
500-600
Week 2
Early Vegetative
600-700
Week 3
Late Vegetative
700-900
Week 4
Flowering
900-1000
Week 5
Early Vegetative
1000-1200
Week 6
Fruiting
1200-1500
Winter

  • Leafy greens grow slower in winter, so lower TDS helps avoid overfeeding and bitterness in leaves.

  • Reduce misting frequency to avoid soggy roots.

  • Watch for nutrient lockout — too high TDS can stunt growth.

Leafy Vegetables TDS Range
Week
Growth stage
TDS Range(PPM)
Week 1
Seedling
300-400
Week 2
Early Vegetative
400-500
Week 3
Late Vegetative
500-600
Week 4
Harvest Stage
600-700
Fruity Vegetable TDS Range
Week
Growth stage
TDS Range (PPM)-1
Week 1
Seedling
500-600
Week 2
early vegetative
600-700
Week 3
Pre-Flowering
700-800
Week 4
Pre- Flowering
800-900
Week 5
Flowering
900-1100
Week 6
Fruiting
1100-1300
Bonus Tips

  • Rotate the tower for even sunlight exposure (if placed near a window).

  • Harvest regularly to promote new growth and enjoy continuous fresh greens.

  • Happy growing — fresh, healthy veggies are just a tower away!

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