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June Garden Calendar Where has the Rain Gone?
The June garden calendar is the brightest month of the year in
California
– a surprising 20% of all the sunlight that will hit your garden will hit during June. Conversely, June is also the month where rain is nearly unheard of – though there's often coastal overcast. June is the prelude to summer, and summer officially hits on June 20th. The June garden calendar is where you'll have to adjust your water use to match what's going on.
The long days of June promote dehydration for your lawn and plants.
Expect to do an inch to an inch and a half of watering on your lawn every week on the coast, and double that in the hot interior valleys of California.
Fortunately, shrubs don't need as much water as grasses do because all that green surface area on grasses means they lose water rapidly in daylight.
Shrubs can probably get an inch or so every two weeks in either climate zone and do just fine. Do remember that because shrubs get their water from their roots, that you should get that water down to where the roots are. Fill the watering basins of your shrubs with two to three inches of water every two weeks, and to the same for fruit trees as well.
When you're watering, focus on doing it in the morning hours in the June garden calendar.
This maximizes the amount of water the shrubs and plants will recover during the day when they need it most.
While you're watering be on the lookout for evidence of fungus problems like rust and black spot, which incubate in warm and moist conditions.
A good landscape design should focus on water conservation when designing your irrigation system. It is important to make sure you're only watering what's needed.
Also consider installing drip systems for your shrubs and fruit trees to help out on this.
Pruning And Fertilizing
May is when most plants experience their explosive growth; The June garden calendar is when pruning goes into shaping and maintenance mode; this is when you need to prune to keep shrubs and hedges compact; focus on thinning things out, and shaping the plants to your will, with hand clippers. You'll want to cut interior branches, and back to the bud, to make the plant denser. It will fill in over the summer, giving you a nice, rich, dense shrub and hedge array.
If you're pruning dense shrubs and hedges, you'll need heavy duty shears. Candidates for trimming on flowering hedges are dimming or fading flowers, and anything you want to fill in over the summer.
For pruning roses, cut back carefully. Each branch you leave behind should have five leaflets, and you should encourage compactness, by trimming low to the ground.
When laying on fertilizer for your shrubs, do it on the ground. If your shrub is getting "grayed out", it's time to consider a bit more fertilizer.
For summer annuals, you'll want to fertilize every other week, as usual. Use a liquid fertilizer that's high in nitrogen, generally about the time you prune back faded flowers.
June Blooming
The June garden calendar is the time when most of your annuals will start showing their full blooms – this is the time to focus on your rose bushes. Spray regularly to beat back rusts and spotting, fertilize after every bloom (putting those flowers out takes a lot out of the bush), and otherwise, take the time to enjoy them.
Other notable June bloomers include jacaranda and silk floss trees, with blue and red flowers respectively.
Southern magnolias will be showing off their beautiful white flowers starting this month, as will Catalina ironwood.
Oleander, that staple of hedges all across the state, is drought tolerant, but is under threat from an insect borne disease called leaf scorch.
Enjoy your oleanders while their blooming and check them regularly for signs of browned, curled leaves. Fuchsia is also suffering from a pest, the fuchsia gall mite. Some plants are distinctly resistant, and if you see one, ask to take cuttings.
Berry Season Begins!
Starting in the June garden calendar, most shrubs start putting out berries that are ready to be eaten – the first blackberries and raspberries are ripening now. Remember, blackberries go dormant every other year – cut down the fruiting canes this year to the ground, so that new canes can grow for next year's crop.
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The long days of June promote dehydration for your lawn and plants. 
If you're pruning dense shrubs and hedges, you'll need heavy duty shears. Candidates for trimming on flowering hedges are dimming or fading flowers, and anything you want to fill in over the summer. 
Other notable June bloomers include jacaranda and silk floss trees, with blue and red flowers respectively. 
