Magnesium is an essential component of chlorophyll. By adding SHIVA Cal+, plants develop a more intense green leaf colour, grow faster and produce more energy.

Calcium improves root system function, enabling more efficient absorption of nutrients and water from the soil. Plants can make better use of all fertilisers and organic supplements they receive.

SHIVA Cal+ contains an optimal calcium-to-magnesium ratio that strengthens cell walls and helps plants build a firm, stable structure. Plants become more resistant to stress, heat, disease and breakage.

Water-soluble, micronised powder · 1 dose = 1 g / 5 L irrigation water

Important: Cal+ must be applied in a separate watering cycle — never mix with other SHIVA nutrient solutions in the same container.

A key element for soil health and plant growth. Strengthens cell walls and prevents blossom end rot (BER).

Supports photosynthesis and improves the overall quality and stress tolerance of plants.

An eco-friendly method of improving soil and supporting the garden ecosystem. Boosts the activity of beneficial microorganisms.

1. First irrigate with NPK fertiliser (Grow / Bloom / Finisher etc.)
2. Wait at least 30 minutes
3. Dissolve Cal+ in a separate container with 5 L of water and mix well
4. Measure pH (target: 6.2–6.8), then irrigate

⚠ Warning: The Ca²⁺ + PO₄³⁻ reaction forms a white precipitate that clogs roots. Never mix with NPK fertiliser!

• Store in a cool, dry place (5–30 °C)
• Keep away from direct sunlight and moisture
• Once opened, use the entire dose immediately
• Keep out of reach of children

• Fertiliser manufactured in accordance with EU Regulation 2019/1009
• In case of eye or skin contact, rinse thoroughly with water
• Not a hazardous substance – no special storage requirements
• Store separately from food and animal feed

SHIVA Cal+ is included in the following packs:

• SHIVA Master Pack – Full cannabis programme
• SHIVA Cal+ Refill Pack – also available individually