Grotek Cal-Max 4L Eryngium planum 'Blue Hobbit' (Sea Holly) Water during dry weather

Water during dry weather

Ideal for the garden or any outdoor activities in warmer temperatures

around pools

ridged furrows in gray-brown bark on more mature individuals

Grotek Cal-Max 4L Eryngium planum 'Blue Hobbit' (Sea Holly) Water during dry weatherGrotek Cal Max can be used on all plants, providing calcium, magnesium and iron for your garden. This helps solve one of the most common nutrient deficiency problems facing fruit and vegetable growers as many soils or potting mixes simply do not have enough of those nutrients to keep the hungry plants growing. Just as people take vitamin or mineral supplements, plants sometimes need supplementing too. Using Cal Max as part of your regular feeding