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Summer Dahlias – Water – Cut Flowers and more dahlia care

Posted on: August 1st, 2020 by Aimee Sherrill

This blog post is all about tips on dahlia care including watering, soils, fertilizing and cutting your dahlia flowers to keep your dahlias growing strong.

Water is THE most important for good growth for your dahlias, they needs lots of water to keep them blooming strong throughout the flower season.


Water:

Water-Water-Water is the name of the game this time of year, it effects everything about their growth and how well they do.  Your soil needs lots of water this time of year,  your soil as it’s own living, breathing organism that needs moisture tooThe soil will only release water to the plants *IF* it has the moisture it needs first.  Deep soak your dahlias 2-3 times per week this time of year.  It’s important to water deep enough, to where the water is reaching the 5″-6″ deep to the tuber.  Hand watering is never enough, deep soak with a soaker hose for at least 1 hour in your dahlia bed.   Your dahlias will appreciate some overhead, hand watering though.  It washes the dust off the leaves and they do absorb water through their leaves as well.  But soaker hoses should be your main way to get water to the tubers.


Fertilize:

The window is closing on fertilizing your dahlias, don’t want to fertilize after August 15th, the dahlias won’t have enough time to absorb the fertilizer completely before fall.  Fertilize now if you have not already, use a granular fertilizer with a ratio of 5-10-10 or as close to that number as you can find. 


How to Cut your Dahlia Flowers:

2 rules of thumb with us:  Always cut your flowers in the morning and cut a stem nothing shorter than from your wrist to your elbow, even if you take off the side buds.  The side buds are weaker flowers, the strongest flower will be the center flower.  Cutting yourself a long stem will promote more bloom, sending up 2 new sprouts in place of the one you just cut.  The more you cut dahlias, the more they will bloom.


Here is a short video from Dahlia Barn owner Jerry Sherrill on how to properly cut your dahlia plants.


Upcoming Events and News:

Open weekends in September for our annual Flower Festival

  *** OPENING WEEKEND THIS YEAR IS September 4-5-6, 2020  HOURS: Fri-Sat-Sunday 10am-5pm    Open every weekend in September

*** Shop for dahlias from the gardens for spring pick up or delivery

*** Take home a fresh $10 dahlia bouquet! 

*** See the Dahlia Show in the barn

*** Pick up some fresh Central Washington fruit

*** See our Perennial & Begonia displays 


Free Admission, we love dogs but please, no dogs.


Our Website is Open for Spring 2021 Dahlia Tuber & Perennial Orders – Please Visit our Online Catalog to see our beautiful dahlias and perennials

4 Responses

  1. Christopher M. Owens says:

    When will I be able purchase dahlias for next year?

  2. Cynthia Banfield-Weir says:

    Hi- is this an area where questions about Dahlias can be asked? A few of the Dahlias have a yellowing around the outside edges of the leaves. Any idea what could be causing this? Thanks for your help.

    • Usually, that is a soil issue and a lack of potassium. Fertilize your dahlias with a 5-10-10 ratio granular fertilizer, that will help green up the plant. Iron is another mineral you could add next season, iron takes awhile to disolve into the soil so it’s too late in the season for the dahlia to absorb the iron before it goes dormant in the fall. Put iron down on your dahlia bed next spring a month or two before you plant. Thanks for your questions!

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