Salvia produces stunning, colorful blooms during summer. But is deadheading necessary for these plants?
In short, while it's not essential for survival, deadheading does help promote healthy growth. Therefore, if you cultivate salvia, this should be part of your garden care routine.
We'll walk you through the key points of deadheading salvia during the summer, including the best methods and timing. For maintaining the plants' shape, see our separate article on pruning salvia.
Importance of Deadheading Salvia
Salvia isn't just visually appealing; they're also beneficial for pollinators.
Jacky Chou, a gardening expert, explains the advantages of deadheading.
'Removing spent blooms isn't critical for survival, but it encourages more vibrant flowering and enhances the plant's overall health. If you want a continuous display of blooms and wish to avoid seed production, deadheading is advisable.'
Deadheading refers to the process of cutting away dead or fading flowers to help the plant channel its energy into producing new blooms.
According to David Cohen, a plant specialist, 'Deadheading salvia is generally a good practice for improving the plant's look and vitality. It promotes new blooms and helps keep the plant looking neat by eliminating spent flowers.'
Drew Swainston, another gardening expert, adds, 'Not only does deadheading result in more flowers, but it also enhances the plant's overall appearance.'
He notes, 'By cutting off spent blooms, you encourage the plant to focus on producing more flowers instead of seeds.'
When Should You Deadhead Salvia?
David Cohen advises, 'The best time to deadhead salvia is right after the initial bloom period when the flowers begin to fade. This typically occurs in late spring or early summer. However, some varieties may bloom longer, so keep an eye on your plants.'
Generally, salvia starts blooming around May or June and can continue through summer if deadheaded properly. If neglected, blooms may only last until mid-summer.
Jacky Chou also suggests, 'The right time to deadhead is as soon as the first wave of blooms begins to wilt. Once the flowers lose their bright color, it's time to cut them back.'
When the flower stalks begin to brown, it's time to deadhead. If left untrimmed, the brown color can spread up the stem. Deadheading should begin once about 70% of the bloom on a flowering spike has faded.
Be intuitive about how often to deadhead. How frequently you trim will depend on how rapidly the flowers grow. Once they start to look faded, it's time to deadhead, which might be necessary every few weeks. Expect to deadhead salvia around two to three times a season.
Don't cut back too early, as the blooms need time to flourish.
At the end of the flowering season, allow the blooms to reach seed-producing stage before deadheading if you plan to collect seeds.
While you can deadhead salvia throughout the year, avoid trimming them back in the fall when they may look a bit wilted. Wait until green shoots appear in spring.
How to Deadhead Salvia
Start by acquiring sharp pruning shears, like Fiskars Bypass Pruner from Walmart. Using dull tools can harm the plant. Make sure your blades are sanitized; McKesson Isopropyl Rubbing Alcohol is handy for disinfecting tools to prevent plant diseases.
Make cuts where the stem meets the highest leaves. David Cohen suggests, 'To deadhead salvia, find the faded flowers just above the leaves or side shoots. Use sharp pruners or scissors for a clean cut to remove the entire flower stem.'
Multiple salvia plants may arise from a central stalk with side shoots. Only deadhead those with dead or fading flowers. If the whole stalk is wilting, consider removing it entirely to allow new growth.
Jacky Chou advises, 'For larger salvia varieties, like Salvia officinalis or Salvia guaranitica, the shearing method may be more efficient. After the main bloom period, shear back the plant to about one-third of its height. Make cuts just above healthy leaves or buds, encouraging fresh growth and potential later blooms.'
Once you've deadheaded your salvia, expect it to produce new blooms. New stems typically grow from the sides.
What to Do After Deadheading Salvia?
After deadheading, provide some water for an extra boost. It's also a great time to fertilize; Elixir Gardens high potassium liquid fertilizer available at Walmart can help boost future bloom production. This should also be done in midsummer to promote a second bloom cycle.
Jacky Chou adds, 'Deadheading, paired with good care practices, keeps salvia healthy and blooming beautifully throughout the season. Ensure your salvia receives sufficient water, sunlight, and proper soil conditions.'
As Jacky Chou points out, 'While deadheading is beneficial for many salvia varieties, some produce attractive seed heads that enhance garden aesthetics or serve as bird food. Consider your salvia type and personal preferences when deciding whether to deadhead.'
For more information on salvia, check out our guide on why salvia is a must-have for gardeners or learn how to propagate salvia for striking perennials in your landscape.
