In the life-time of a nurseryman , few things are sadder than nurturing a industrial plant , harvest the tasty fruit or veggie , eating it … and discovering that it tastes terrible .

This happen to me a duet years ago with the carrot I grew and forgot to fertilize on a regular basis .

It can find with all form of plants , including other Umbellifers – like celery .

A close up horizontal image of rows of celery plants growing in the garden with dark soil in the foreground.

Photo by Laura Melchor.

And since it is already a strong - tasting veggie , the last affair you desire is for those stalks to taste so acrid you’re able to barely stand to eat them . What a distressing mop up of your grow efforts !

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If you ’ve ever harvested disappointingly unappealingApium graveolensor require to verify your current crop zips with tasty but not overbear flavor , this article is for you .

A close up vertical image of a freshly harvested bunch of celery stalks on a wooden chopping board set on a wooden surface. To the top and bottom of the frame is green and white printed text.

Photo by Laura Melchor.

you could learn celery in your garden in our guidebook .

Here ’s what I ’ll plow in this article :

5 Reasons Why Your Celery Tastes Bitter

1 . Not Enough Nutrients

2 , Too Much rut

3 . deficiency of Water

A close up horizontal image of a compost pile with food scraps.

4 . to a fault Mature Plant

5 . Stalks Have n’t Been blanch

As I discovered withmy bitter carrot , a lack of nutrient can result in a poorly fed , bitter - tasting plant .

A close up square image of the packaging of Vigoro Tomato and Vegetable Garden Plant food.

When I wasnew to horticulture , I did n’t remember too hard about the soil where I engraft my seeds .

I normally just dumped some potting mix from the store into a littleraised bed , and that would adequately feed my herbaceous plant , flowers , and pocket-sized assemblage of veggies for the summertime .

My mum had a compost heap where I dumpedeggshellsand carrot peel to become smelly mush , but as a stripling I did n’t really make the connection between thecompost pileand the plant in the garden .

A close up top down horizontal image of two small Apium graveolens plants growing in the garden surrounded by straw mulch.

After a few turn of harvesting acrid vegetables , I realise that getting the soil composition right and feed the plant regularly is essential if you want to eat homegrown produce that smack undecomposed .

To put it simply , if you are n’t giving the plants what they need in guild to boom , they stomach . And an undernourished plant wo n’t taste decent .

Celery is a grueling self-feeder , but it ’s an easy plant to nourish . All it needs is an coating of balanced fertilizer every three to four weeks for delay glad .

A close up vertical image of a hand holding a spray hose watering a small Apium graveolens plant in the garden.

Vigoro Tomato and Vegetable Plant Food

I care to use this 12 - 10 - 5 ( NPK ) product from Vigoro , available at the Home Depot .

It ’s also a good idea to repair your soil with compost or well - rot manure before implant your Apium graveolens dulce , giving it a nutritious - rich place to grow .

A close up horizontal image of sliced celery stalks.

2. Too Much Heat

Celery thrives in places where dark are a cool 50 ° F and days do n’t pass 70 to 80 ° F . If temperature rebel into the XC – especially as the stalks reach maturity – the heat can induce the stalk to turn acerb .

To protect your plants during heatwaves , irrigate them early in the morn to keep the grunge moist and cool throughout the sidereal day , andmulch with strawor another light - colored material .

This help to keep the land and ascendent from overheat .

A close up horizontal image of celery in the garden being blanched using milk cartons, pictured in bright sunshine.

you’re able to also rear a shade textile that block 30 to 50 percentage of the light , like this one from Amazon , leave it up during the hottest portion of the day .

3. A Lack of Water

If it does n’t get enough piss , Apium graveolens dulce can produce stringy , bitter stalks . Each plant life require at least one to one and a half inch of water every week , and if it does n’t get that wet , it ’ll get stressed .

So make certain you ’re systematically watering your plants . If you ’re prostrate to forgetting , as I sometimes am , set a day-after-day reminder on your earpiece to check the moisture level of the soil .

If you poke your finger three inch down and feel dryness , it ’s time to irrigate the thirsty plant .

A close up horizontal image of celery stalks, some of them that have been blanched and are pale in color, others are darker.

4. An Overly Mature Plant

Cheese and wine may become gross with age , but celery does not .

It can be rugged to be intimate when to harvest the verdant stalks , but if you wait too long , you risk harvesting ruffianly , bitter , stringy cultivated celery .

Yuck !

A top down horizontal image of two bowls of winter vegetable soup set on a white and red tablecloth with grated parmesan in the background.

gratefully , there are two well-situated way to know when your works is quick for harvest :

1 . It ’s been about 130 - 140 day since the seedlings germinated .

2 . Stalks are six inches long from the base of operations to the first leaf .

A close up horizontal image of a plate of roasted vegetables with sliced parmesan on the top, set on a wooden surface.

So get out your ruler and do some mensuration . Andcheck your gardening diary , in which you hopefully marked the engagement of germination if you grew the flora from come .

If you postulate extra help reckon out when to harvest , check out our guide to harvesting celeryfor more top .

5. Stalks That Haven’t Been Blanched

perhaps you cave in your plant the right amount of water and fertilizer , kept them cool in hot weather , and harvest the stalks at the right time , but they ’re still bitter .

Why ?

Take a face at the colouring . Are the stalks a bright , mystifying unripe ?

A close up horizontal image of celery leaves covered in light droplets of water pictured on a soft focus background.

For sugared still hunt , you ’ll need to blanch the celery in the garden by covering them with newspaper publisher or milk cartons about two calendar week before harvesting .

This blocks the Sunday from reach the stalks , preventing photosynthesis and chlorophyl yield , and resulting in a sweet , lighter - colour plant .

In the photo above , the stalks on the leftover - hand side have been blanched , while the stalk on the ripe - hired man side have not .

For more details on how and when to do this , check out ourguide to blanch Apium graveolens dulce in the garden .

you may alsogrow self - blanching varieties , like ‘ Golden Self - Blanching . ’

If it ’s too late to blench – possibly you ’ve already harvested all your plant – tease the pass aside to find the lighter , by nature blanch inner stem .

These will taste sweet than the outer stalks , so they ’re idealistic for when you want to enjoy a bare-assed stick or two for an good afternoon snack .

utilize the green stalks for cooking . As you ’ll see in a moment , cooking the bitter shuck can help to better their flavour .

What to Do with Bitter Celery

Now that you eff how to foreclose bitter nip from developing in your celery , you may keep your next craw hefty and unfermented .

But what if you already harvested cultivated celery that ’s ruffianly , unchewable , and sulphurous ? What can you do with it ?

taste slue it into modest pieces and sauteing it in dairy farm - liberal margarine until it begins to turn crank , and then add it to this vegan Thanksgiving stuffingfrom our sis site , Foodal .

Sauteing it will mince the harsh flavor but help it to retain its frizzly texture in your stuffing .

Or , simmer it into Foodal ’s luscious , fall - appropriate veg petite marmite .

Like sauteing , the act of simmer or boiling the celery in a soup like this one brings out its milder side .

To transmute it into a tasty side dish , try caramelizing and roasting it along with onions , mushrooms , Daucus carota sativa , zucchini , and other luscious veggies in this recipe for a roast vegetable and herb salad , also from Foodal .

See ? Even if you harvest a bunch of sulphurous stalk , it does n’t mean your unvoiced work was for aught . There ’s still tidy sum you may do to make acrid stalks shine .

A Sweet Cel(ery)bration

I hope this clause has lifted your spirit if you recently take on a immense bite of garden - farm celery and virtually droop at the overwhelming flavor .

Or maybe it caught you in fourth dimension to blanch the stalks , or add a second of fertilizer , water , or protective shadiness cloth to your emphasize - out plant .

Now , go forth and grow yourself some sweet - tasting stalk .

And remember to see out these articles ongrowing flavorful Umbellifersin your garden next :

Photos by Fanny Slater , Meghan Yager , and Laura Melchor © enquire the Experts , LLC . ALL RIGHTS RESERVED.See our TOSfor more details . Originally published September 19th , 2020 . Last update January 30th , 2025 . intersection photos via Home Depot . Uncredited photos : Shutterstock .

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Laura Ojeda Melchor