We recommend most plants be planted in the fall or spring. However, if you must plant during the summer months watering may need to be more frequent and you must be diligent about observing your newly planted plants for signs of water stress. Follow the guidelines in the Watering section.
Many cacti and warm-season succulents can still be planted in the summer. When transplanting cacti and succulents, mark either the south or west side and plant facing the orientation you marked to avoid the burning of tender tissues. Most nurseries will mark the side of the container to help you determine proper planting orientation. However, if the original orientation is not known, newly planted cacti and succulents need to be covered with shade cloth if the plant surface appears to yellow or pale suddenly. Use a shade cloth rated between 30-60% as anything higher will block most of the sunlight and will not be suitable for your cacti and succulents. You may need to keep the shade cloth on the plant for the duration of the summer.
|PLANT CACTI AND WARM-SEASON SUCCULENTS INCLUDING:|
|• Prickly-pears (Opuntia spp.)
• Barrel cacti (Ferocactus spp.)
• Hedgehogs (Echinocereus spp.)
• Easter Lilies (Echinopsis hybrids)
• Pincushions (Mammillaria spp.)
• Chollas (Cylindropuntia spp.)
• Golden Barrel (Echinocactus grusonii)
• Senita (Pachycereus schottii)
• Organ Pipe (Stenocereus thurberi)
• Mexican Fence Post (Pachycereus marginatus)
• Queen of the Night (Peniocereus greggii)
|• Old Man of the Andes (Oreocereus celsianus)
• Agaves (Agave spp.)
• Aloes (Aloe spp.)
• Red-yucca (Hesperaloe parviflora)
• Giant Hesperaloe (Hesperaloe funifera)
• Burseras, Elephant Trees (Bursera spp.)
• Carrion Flowers (Stapelia spp.)
• Slipper Plant (Pedilanthus macrocarpus)
• Madagascar-palm (Pachypodium lamerei)
• Elephant Food (Portulacaria afra)
• Ponytail Palm (Beaucarnea recurvata)
Desert-adapted trees can be planted during the summer months if you follow the guidelines in the Watering section. When planting native and desert-adapted plants, it is usually unnecessary to back-fill with soil amendments and vitamins or to add rooting hormones.
|TREES TO BE PLANTED INCLUDE:|
|• Desert Willow (Chilopsis linearis)
• Mesquites (Prosopis spp.)
• Palo Verdes (Parkinsonia spp.)
• Texas-olive (Cordia boissieri)
• Anacacho Orchid-tree (Bauhinia lunarioides)
• Texas Ebony (Ebenopsis ebano)
• Palo Blanco (Mariosousa willardiana syn. Acacia willardiana)
• Golden Leadball Tree (Leucaena retusa)
|• Kidneywood (Eysenhardtia orthocarpa)
• Feather Tree (Lysiloma watsonii)
• Ironwood Tree (Olneya tesota)
• Catclaw Acacia (Senegalia greggii syn. Acacia greggii)
• Palo Brasil (Haematoxylon brasiletto)
• Mexican Ebony (Havardia mexicana)
• Kidneywood (Eysenhardtia orthocarpa)
• Desert Fern (Lysiloma watsonii)
Shrubs should be planted in fall or spring.
Herbaceous perennials and groundcovers should be planted in fall or spring. However, many warm-season vines can be planted during the summer months. Water immediately after planting and monitor the moisture for the next few days to keep the root ball from drying out. Water newly planted native and desert-adapted vines twice to three times weekly to a depth of at least a foot. Gradually extend the time between watering and monitor plants regularly for signs of water stress.
|VINES TO BE PLANTED INCLUDE:|
|• Yellow Orchid-vine (Callaeum macropterum)
• Queen’s Wreath (Antigonon leptopus)
• Arizona Grape-ivy (Cissus trifoliata)
• Old Man’s Beard (Clematis drummondii)
• Purple Bushbean (Macroptilium atropurpureum)
|• Yellow Morning Glory-vine, Yuca (Merremia aurea)
• Passionflowers (Passiflora spp.)
• Arizona Canyon Grape (Vitis arizonica)
Continue to plant cacti seed. Seed can be soaked overnight in water to help begin the germination process. Place seed in a well-draining soil mix (½ quality potting soil and ½ perlite or pumice) and lightly cover with potting mix or gently press the seed into the soil. Keep soil moist until germination occurs.
|VEGETABLE SEEDS TO SOW INCLUDE:|
|• Armenian cucumber
• black-eyed peas
• yardlong beans
• tepary beans (early month)
|VEGETABLE TO TRANSPLANT INCLUDE:|
|• sweet potatoes (early in the month)|
Many vegetables including some varieties of tomatoes, bell peppers, and cucumbers reduce their production of flowering due to the intense summer heat and those that do flower may not produce fruits because the pollen is damaged with temperatures over 90 degrees causing flowers to eventually drop off. Shade these vegetables using at least 30%-50% shade cloth. Apply a layer of mulch around vegetables to help cool the soil and to retain moisture requiring less frequent watering. Depending on the type of tomato plant and if they survive over the summer, they should begin to produce fruit again in the fall. Some smaller tomato fruiting varieties will still continue to produce fruit through the summer months.
Wait until fall or spring to plant most herbs.