Do You Deadhead Irises
Yes, you should deadhead irises as it will allow your irises to bloom for a longer period of time and make your garden look better and neater. Deadheading irises will also reduce the risk of your plant catching diseases like botrytis or pests like iris borer by allowing air to circulate better. However, deadheading irises is not essential as unlike deadheading salvias or other plants you are going to get most irises varieties to bloom only once per year. In case you want to grow irises from seeds you can skip deadheading irises and they will go into the seed production phase.
Why Should You Deadhead Irises: Benefits
These are the most common benefits of deadheading irises
- Irises bloom once every year during spring and look good when they do so but after the flowers get spent and fade the garden will not look good so if you deadhead these spent flowers you will give your garden a neater look and make it more attractive again.
- When you cut back your irises it will improve the air circulation and also help in preventing fungal diseases like botrytis or pests like iris borer.
- Deadheading irises will redirect the energy of the plant from producing seeds to producing flowers so it will help extend the blooming period for your plants.
- Deadheading irises will also help divert the energy into strengthening rhizomes.
- While most irises bloom only once per year some varieties of bearded iris and other irises varieties that can rebloom will benefit from deadheading.
When to Deadhead Irises for More Blooms
The right time to deadhead irises is a few days after the blooms on the plant have faded usually in spring itself. While most gardeners believe in regular weekly deadheading and cleaning of the plant after blooming that will not work for irises because most varieties of irises only bloom once a year late in spring and after they have bloomed you mostly need to deadhead only once and after that next blooming will happen the next year only
How To Deadhead Irises Step by Step
Step 1: Inspect and Clean Your Tools
You can deadhead irises by removing spent flowers with your hand also but it is better to use hand pruners. scissors or knives to prevent the risk of passing any infection to the plant. Also before you use your instruments to deadhead the plant make sure that your instruments are sharp and clean as dull instruments will not only take more time but may also damage the plant. You can clean and sanitize your instruments by dipping them in rubbing alcohol and then rinsing them with water
Step 2: Figure out Where to Cut
Identify The irises flowers that have faded and then find the flower stalk where those flowers bloomed and follow its stem down to the base of the plant where you will have to make the cut.
Step 3: Remove Flower Stalk or Just Flowers
You can choose to either remove the complete flower stalk or just remove the withered flowers. If you are removing the Flower stalk you should not do it by hand but you should use a pruner and cut at the base of the plant at an inclination of 45 degrees taking care to ensure that there are no flower buds or leaves. When removing flower stalk make sure that the weather is warm so that it can easily heal.
Step 4: Leave the Leaves intact
During Deadheading make sure that the leaves are left intact on the plant so that plant can build up stores of energy for the winter.
Step 5: Clean the Debris
Make sure that you clean all the debris left behind after deadheading so as to reduce the risk of any kind of infection from diseases or pests.
Is Removing Flower Stalk When Deadheading Irises Necessary
When deadheading irises you can choose to either just remove the flowers that are faded or remove the complete flower stalk. If you remove the flower stalk it will help improve the look of the garden as empty stalks coming out of leaves look weird also leaving the flower stalk increases the risk of your plant developing diseases like root rot. If you leave the flower stalk intact it will help the plant in photosynthesis and help it store energy for the winter. If you have an irises variety that reblooms it will happen in a fresh stalk so removing flower stalk will not stop it from reblooming.
How Often To Deadhead Irises
You only need to deadhead irises once a year after they have bloomed and withered late in the spring as most iris varieties bloom only once a year. Some varieties of irises have an exception and they can rebloom and you should deadhead them more but they are rare.
When Can You Cut Irises Back
You can cut irises back in the fall alternatively you can leave the leaves to die naturally but then you will have to do a major cleanup. After you have deadheaded the plant in spring make sure that you have left the leaves intact these leaves you should cut back in autumn.
Takeaway
- You should deadhead irises to redirect their energy towards extending their blooming period and to make sure that your garden looks cleaner and neater.
- Most irises variety only bloom once per year during spring and unlike other plants deadheading will not help them rebloom exception being some varieties of bearded irises.
- You should deadhead irises a few days after the blooms have faded usually in spring itself.
- When deadheading irises make sure that you leave the leaves intact so that they can store energy for the winter. Leaves of irises can be cut back later in autumn
- To Deadhead the plant first identify the withered flowers and remove either just the flowers or the complete flower stalk. If removing the flower stalk make sure that you use a pruner instead of your hand and follow the stem where the flower had bloomed to down where it comes out of foilage and cut at the base of the plant.
- Removing the flower stalk helps improve the look of the garden and reduce the risk of diseases.
- If you leave the flower stalk standing then you are helping the plant conserve energy for winter.
- You only need to deadhead irises only once per year.
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