Shrubs
Do you live in hardiness geographical zone 10 , but are n’t quite certain if hydrangea will abide up to your heat and humidity ? Hydrangeas are gorgeous shrubs , but they typically thrive in the right environment . In this article , gardening expert Jill Drago examines what you may expect when growing hydrangeas USDA hardiness zone 10 .
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hydrangea are well - lie with plants for a good grounds . Their flowers are beautiful . You cangrow hydrangeasindividually , as a hedge , orin containers . you may use their flowers in fresh or dried musical arrangement . Their foliage is a exuberant green . Hydrangeas are very versatile shrubs . They know sun and shade in any compounding that you choose .
They are southerly favorites , buthow far to the south is too far ? Many climates closer to the equator get both very hot , and also very humid . This makes it a challenge for hydrangea , despite their well - knownperennial hardinessand climate tolerance .
So , if you are you consideringadding some hydrangeas to your zona 10 garden , know that this is definitely doable ! It may just take a bit more thoughtfulness when you are opt your hydrangea variety , and the fix of the flora .

The Short Answer
The poor resolution , isyes , hydrangeas can be maturate in USDA hardiness geographical zone 10 . You ’ll require to choose a heat friendly variety , and find a good location in your garden for them to grow successfully . Themacrophyllaandpaniculatavarieties are thelikeliestvarieties to execute well this mood .
What is Zone 10?
USDA Hardiness zonesare unlike regions in the United States that are classified according to the averagelow temperature in the winter . Zone 10 see average winter low ranging from 30 - 40 degrees .
Zone 10 is made up of the southerly confidential information of Florida , the most southern point of Texas , some areas in southern California ( both coastal and inland ) , and some small sections of Arizona . It is fair to say that while these positioning are all warm regions , they have drastically different climate .
The rainfall amount will differ , as will the humidity . These factorswill strike the number of supplemental wateringhydrangeas may need , as well as if they should be planted in the sunlight or the shade .

When to Plant
There is a lot more flexibleness to when you should plant a hydrangea in geographical zone 10 than there is in say zone 6 . But the same rules apply;plant in the declination or the spring . Since Robert Frost is not a plebeian fear you’re able to also imbed over the winter .
In zone 10 , you require to bemore disquieted about the heatas defend to the frost . The cooler temperatures will reduce graft shock and will encourage the root word to take hold . plant in the fall will give your shrub more time to take grip before the flower time of year .
If you choose to plant in the spring your plant will still be successful , it just may not have the stunning flower in its first time of year that you may have desire for . Hydrangeasneed a mickle of waterto become establish so be certain to take a cooler season to get your plants in the ground .

How to Plant
Planting a hydrangea itself is quite bare . delve a hole twice the size of the root ball , and a little deep . Be sure that the understructure of the plant is swallow up as deep as it is in the pot , no deeply .
add up compost or your choice of organic subject is helpful as hydrangea love rich dirt that is well - draining . water system the plant really well . A great manner to avail your industrial plant go for in wet is bymulching around the works , one to two inches should be sufficient . The mulch will retain wet from rain , humidity , or subsidiary watering .
What to Plant Where
The next plant and tips will facilitate youselect the right species of hydrangeafor your area . posit the plants on a north - confront wall or at the bottom of a slope to keep them from drying out .
Hydrangea anomalais asalt tolerant metal money , build it a great option for a cooler coastal area . The climbing hydrangea is tender to hot temperatures and also to humidity . to have a prolific bloom the plant require about six weeks of temperatures below 65 degrees . If these conditions match your clime the climbing hydrangea can be used to climb up up the trunk of a tree , or as a ground cover underneath a tree diagram in rich shade .
Hydrangea macrophyllawould be more disposed togrow in zone 8and below , this variety should grow quite well in the coastal areas of zone 10.The morning sun would be slap-up for the bigleaf hydrangea , but it will involve shade in the good afternoon to protect it from the heat of the sun . Another condition is to keep the bigleaf hydrangea out of any area that gets too breezy . This will help to keep the plant from drying out .

Hydrangea paniculata , or the panicle hydrangea , is themost Dominicus - loving hydrangeaand probably your dear stakes in geographical zone 10 . These plant life grow to large meridian and make splendid hedges and privacy screens . Even still , in geographical zone 10 I would not situate your flora in full Dominicus . Make certain your industrial plant get some shade in the afternoon so it has a faulting from the heat .
Hydrangea serrata , or mountain hydrangea is fearless up to zone 9 making it a great choice for zone 10 . Similar to bigleaf hydrangea theyrequire only sunrise sunwith afternoon shade . They are not tolerant of wind , or particularly cold or hot temperatures . This mean that keeping your mountain hydrangea in the shade , and well - watered is a must !
Maintenance
When it come to maintenance , there ’s many important factor with this decorative shrub . hydrangea are fair broad to a petty neglect , but to keep them blooming to their full potential , you ’ll need to engage in everyday upkeep . If you do n’t tend to them properly , it can result in your hydrangealosing the large bloomsthey are most well known for .
Deadheadingand lacrimation are the two most important aspect of maintenance . Color management is also significant if you design on keeping your hydrangea’sbeautiful blue bloom of youth . Let ’s take a deeper tone at maintenance in geographical zone 10 .
Deadheading
Since hydrangea do n’t go dormant in zone 10 , you will not need toprune your hydrangeas . It is a good idea to deadhead the flowers to encourage Modern blooms for the next time of year . Once your flowers go to dry out justsimply cut the base below the flowerand just above the next set of great leaves . This will not cause your flower to flower again in that time of year , it will simply groom your hydrangea plant .
Water
Hydrangeas are piddle fan . Similar tozone 9 hydrangea gardeners , see to it that where you have plant them receives a good amount of water , perhaps an country on your propertywhere water system collects of course . This will aid the plants out , and save you some water .
Hydrangeas in zone 10 require good wateringthree times a week . deflect overhead tearing as the leftover water droplets on the folio can provide brown spot , or burns . A cloudburst hosepipe , or drip irrigation is a really upright option for mystifying watering if you have irrigation uncommitted .
Controlling the Color
Hydrangea macrophylla , or bigleaf hydrangea will react to the pH of your stain . Soils that are more acid , below 5.5 pH , willfavor blue flowersby allow the hydrangea to absorb more aluminum . Whereas soils that are above 6.5 pH , or “ honeyed ” soils , will give rise pink flowers on your hydrangea . Before amending your grease with anything a grease mental test is urge .
To enhance the blue of your flowers use aluminium sulfate . Aluminum sulfate is readily available , and the best product to use . A drench of one tablespoon of aluminium to one Imperial gallon of water is the safest software rate . If the plant is ironical , water before applying this solution . This method should only be used twice a class ; once in April and once in May .
If you are wishing to raise your pinks or reds , using garden limewill be your best pecker . use a pulverisation manakin of lime to the base of the industrial plant in April and again in October .

Final Thoughts
I ca n’t say that I have ever seen a hydrangea while travel to southern California or Florida … but I do n’t think I would ever have been looking for them ! My eye is always searching for those tropical plants that I hanker to see when I am trapped away in the snowy winter of the northeastward .
But who ’s to say hydrangeas ca n’t have that same tropic vibe ? Their leaf are rich green , and theirflowers are equally as showy , if not more so than a stack of the bright orange and pinks of tropic landscapes .


