Common Name: Echinocactus
Origin: Mexico
Ο Echinocactus or otherwise white barrel cactus, the mother-in-law's white ball or white pillow (Echinocactus grussonii) is a species of slow-growing cactus. Its shape resembles a barrel and reaches a height of 60 cm and a diameter of 60 to 90 cm. Its stem is light green in color and bears from 20 to 35 thorns.
Flowers
Its flowers are funnel-shaped and yellow in color. Its flowering period is from May to July.
Location
It thrives in bright and sunny places. A south-facing position will provide good sunlight.
Temperature
Withstands minimum temperatures down to – 4 °C.
Planting substrate
There are substrates on the market suitable for succulents and cacti. They consist of peat, a part of coarse river sand and sifted leaf soil. This mixture provides good ventilation, excellent drainage and nutrient supply.
Watering
There is a misconception that cacti and succulents require infinitesimal amounts of water. Although they store water in their leaves and stems, they certainly won't thrive with too little water. Water every 10-15 days during the growing season (late spring, summer, early autumn) and much more sparsely in winter.
Tip:
The secret is to always let the soil dry out between waterings!!
Lubrication
Lubrication should be done during the growing season and stopped in winter. There are fertilizers on the market especially for cacti and succulents. Use a fertilizer that is high in potassium, as it strengthens cell structures and plant resistance to disease.
Diseases and enemies
Cacti and succulents are infested with enemies and diseases. Their most common enemies are aphids, granules, thrips, blackflies and snails, and they are often infected by fungi.
It is suitable for rock gardens and potted gardens.
Flowerpot 5.5 cm 
