Got geraniums? 9 critical things you must do this June to get endless colorful blooms all summer

As June rolls around, gardeners everywhere look forward to the vibrant explosion of color that geraniums bring to their outdoor spaces. Known for their versatility and striking blooms, geraniums are a favorite among both novice and seasoned gardeners. However, to keep these beauties flourishing all summer long, some critical care steps must be taken starting in June.

Whether you're nurturing them in pots on your patio or planting them in garden beds, ensuring your geraniums receive the right care can make all the difference. From feeding and watering to pruning and pest control, here are nine essential tasks to help your geraniums thrive and reward you with endless colorful blooms all season.

Deadheading is a crucial task that involves removing faded or spent blooms from your geraniums. This process encourages the plant to produce more flowers instead of directing energy towards seed production. Use a pair of clean, sharp scissors or garden shears to snip off the flower stems just above the nearest set of healthy leaves. Make sure to check your plants weekly and remove any spent flowers promptly to keep them blooming continuously.

Pruning your geraniums in early June can help promote bushier growth and more abundant blooms. Trim back any leggy stems by a third to half their length, focusing on the outer edges of the plant. This encourages the plant to branch out and develop a fuller shape. Be sure to use clean, sharp shears to avoid damaging the plant tissues.

Geraniums are heavy feeders and benefit from regular fertilization during their growing season. In June, apply a balanced, water-soluble fertilizer such as a 10-10-10 or 20-20-20 formula every two weeks. Follow the manufacturer's instructions for dilution rates and avoid over-fertilizing, which can lead to leaf burn and reduced blooming.

Proper watering is key to healthy geraniums. Water deeply once or twice a week, allowing the top inch of soil to dry out between waterings. Avoid overhead watering, which can promote fungal diseases; instead, water at the base of the plant. Ensure that containers have good drainage to prevent root rot.

Geraniums thrive in full sun, requiring at least six to eight hours of direct sunlight daily. If your plants are in pots, make sure they are placed in the sunniest spot in your garden. To ensure even growth and flowering, rotate the pots every week to prevent the plants from leaning towards the light source.

If your geraniums are in containers, June is a good time to refresh the potting mix. Remove the top layer of soil and replace it with fresh mix to provide new nutrients. If the plants have outgrown their current pots, consider repotting them into larger containers to give the roots more room to grow.

Pinching involves removing the tips of new growth to encourage bushier plants. This can be done by using your fingers or scissors to remove the top inch of the stems. Pruning back leggy or excessively long stems will also help maintain the plant's shape and promote more flower production.

Regularly inspect your geraniums for signs of pests such as aphids or whiteflies, and treat them with insecticidal soap or neem oil as needed. Also, keep an eye out for fungal diseases like rust or powdery mildew, and remove affected leaves promptly. Maintaining good air circulation around the plants will help prevent disease.

June is an excellent time to take cuttings from your healthiest geraniums to propagate new plants. Use clean, sharp scissors to cut 4- to 6-inch sections of healthy stems just below a node. Remove the lower leaves, dip the cut end in rooting hormone, and plant it in a mix of peat and perlite. Keep the cuttings moist and in indirect light until they root, usually within a few weeks.