What do people , oral contraceptive , and pelf have in mutual ?

When they are bitter , they ’re the worst .

perhaps that ’s a bad jest , but I secern it to prompt you to take all the necessary precautions to ensure yourLactuca sativais tender and mild , not bitter , like some grumpy friends I could cite …

A close up horizontal image of a freshly harvested lettuce on a wooden chopping board.

A hint of heat is okay , and homegrown varieties do tend to have more flavor than supermarket iceberg and the like . But once this immature vegetable commence evolve a pervasive off - taste , the jig is up .

You may be able to reap a pass , or a bunch or two , and sophisticate it up so it ’s eatable . But once the flavor rick virulent , the lettuce will never return to being the delicious salad ingredient you intended to arise .

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A close up vertical image of green lettuce growing in the garden. To the center and bottom of the frame is green and white printed text.

Lettuce picked   at its top and serve sweet from the garden is a taste star . When you plant your ownL. sativa , you may furnish your menage with a embarrassment of fresh , cheap leaves or crisp heads .

Us veg gardeners can also taste any number of seed - grown diversity that are n’t available at any store , or even at the Fannie Farmer ’s market .

But that advantage is well delete out when your wanted harvest starts tasting acerbic . Before you know it , the park are primed only for the compost heap .

A close up horizontal image of rows of lettuce growing in the garden pictured in light sunshine.

countenance ’s not permit that find ! In this guide , I ’ll share the top reasons why homegrown lettuce becomes acrimonious and how to foreclose it . Here ’s what I ’ll get over :

The Top 3 Reasons for Bitter Lettuce

Frombuttercrunchto romaine to lax leaf varieties , shekels is a garden staple that ’s easy to grow and lovely to have on hand for fresh salads , wraps , and garnish .

Having your craw germinate a vitriolic taste is probably the tough issue you ’ll face when you produce this fresh leafy green , except maybe the infestations ofinsect blighter that can plagueL. sativa .

Why does absolutely attractive green or cherry-red scratch sometimes look fine in the garden , but it smack bitter when you beak it ? These are the top cause , with preventive measures for each :

A close up vertical image of a red lettuce plant that has bolted and gone to seed pictured in bright sunshine.

1. Environmental Conditions

The top reasonableness for bread to become bitter is beetle off .

This term depict a plant that puts all its energy into develop flower stalks and buds that can open and flower , producing seeds if they ’re pollinated .

The reproductive process have the plant life to form bitter compounds in both the leaf and stems , which turns their taste more blistering and coarse with each kick the bucket day .

A close up horizontal image of a small lettuce seedling pushing through dark rich soil, with a plant marker in the background.

L. sativawill finally bolt as it gets erstwhile , if the days are long enough .

But it will bolt more quickly in reply to environmental experimental condition , especially hot atmospheric condition or teetotal spells .

This create sensation if you remember about it : As a plant that thrives in nerveless weather , heat or too little water feels life - threatening , so it start the process of forming seed to grow a Modern generation to carry on after it ’s gone .

A close up square image of ‘Ruby’ lettuce growing in the garden.

Most type start forge buds after a couple of days of temperatures in the 70 to 80 ° F range .

There ’s alsoa day - length component , with scratch run out in response to recollective day in early summer or shorter days in tardy fall . But according to the available enquiry , gamy temps are the most reliable effort of bolting .

body of water stress can also have lolly to become bitter . The lack of moisture can be linked to the blistering atmospheric condition that instigates bolting , or it may be an independent cause of badly - tasting homegrown romaine lettuce , buttercrunch , or loose leaf varieties .

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This is an unforgiving cycle for us vegetable nurseryman . Even if you acknowledge your plant are forming buds and pinch them off , you ’ll only purchase yourself a few excess days of mild - tasting greens out of the hatful .

It ’s far more hardheaded to focus on bar . Use these pourboire :

Prevention

Before sowing or transplantation , check that you note the number of days to matureness and whether you have enough time to harvest ahead of the metre when hotness typically strike in your area .

This advice apply to produce all varieties , include butterhead , crisphead , looseleaf , and romaine type .

say more about preventing lettuce from run off here .

A close up horizontal image of a hand from the bottom of the frame holding a small head of romaine that has gone rotten.

When you ’re grow in a region with long , hot summer , you may also want to look into planting a cultivar that is in particular bolt - immune . These are three of my favourite :

This heat - insubordinate , Amish heirloom develop narrow , pointed leaves connected to a compact base that ’s about six inches tall at its full size .

‘ Deer Tongue ’

A close up horizontal image of lettuce that has bolted and gone to seed pictured in bright sunshine on a soft focus background.

The leafage have crunchy ribs and a balmy flavor . ‘ Deer Tongue ’ produce baby leaves in 30 day , and reaches adulthood in 46 days .

This variety isavailable in 300 - cum packets from on-key Leaf Market .

Appropriate for containers and edible landscaping , ‘ Ruby ’ produces recondite - red tint leaves on plant that grow seven or eight inches marvelous at maturity .

A close up horizontal image of a raised bed garden growing a variety of different vegetables and herbs.

‘ Ruby ’

It ’s renowned for its heating system resistance , and matures in 30 to 60 sidereal day .

‘ Ruby ’ seeds areavailable in various packet sizes and one - pound sacks at Eden Brothers .

An open - pollinated red folio cultivar with surpassing rut tolerance , ‘ New Red Fire ’ grows comparatively slow , reaching its mature height of around 10 inches in about 55 days .

The leaf make a mellifluous , crispy base for swelled salads , and are the veracious size and texture to slip into sandwich or Warren Burger .

The frilly leaves are light red and green , and they will grow turgid enough to apply for lucre wrapping without developing a harsh taste .

‘ New Red Fire ’

This cultivar also grows well in nerveless weather .

‘ New Red Fire ’ seeds are available in packets of 200from David ’s Garden Seeds via Amazon .

take down that arise dumb - bolt type only prolongs the time of year a bit . You still wo n’t be able-bodied to nibble bountiful baskets of salad greens in the July or August heat when the temperature is 100 ° farad .

Other ways to prevent the acerb taste that occur in lettuce that ’s been exhibit to too much red-hot weather include embed it in part shade , get a parachuting on the season by purchasing graft orstarting seeds indoors , mulching after the seedlings are a couple of inch tall , and growing this harvest in containers you may move indoors if an early heatwave smasher .

One additional way to cope with this situation is to realine your expectations . If you remember of grow lettuce as a task involving a series of successive planting , instead of grow a single crop per time of year , you’re able to readily sow and pick two or more sets of baby parting before warm temperatures arrive and destroy the harvest time .

Most variety will give rise leaves that are at least two inches long , and legal tender and mild , within 20 to 30 day – well ahead of the arrival of warm weather in the spring or summertime . To study more about wield this eccentric ofsuccession planting , see our guide .

To understate moisture stress from the get - go , start with proper garden preparation . ensure to plant your lettuce in loamy dirt that ’s been amended with plenty of organic matter , so it will hold back wet and also drain well .

If you ’re planting in a pot , use a fat , well - drain potting mix . check that the container is coated to prevent dehydration , and that it has hole in the bottom for drain .

In the first pair of weeks after you transplant scratch or after your ejaculate have sprout , provide enough piss to keep the dirt moist but not swampy .

Once youthful bread plants are demonstrate and have produced several sets of true leave of absence , extend irrigating a brace of times a week when your garden does n’t receive at least an in of piss from rainfall .

Not sure how much precipitation has fallen?A rain gauge can help .

When you’regrowing in containers , you may need to water even more often to maintain damp but not waterlogged soil .

In area where body of water evaporates quickly , even in the spring or autumn growing seasons , you may want to invest indrip irrigation or alky hose .

It ’s also a unspoilt mind to mulch the plant when they ’re a couple of inches tall , and to weed often and well so these shallow - root greens are n’t competing for H2O .

Learn more about watering and find additional baksheesh to care for homegrown lettuce in our usher .

2. Not Enough Nutrients

When you ’re unable to giveL. sativawhat it demand to grow quick , the plants are more likely to bolt and turn acerb before you ’ve finished harvest .

This is especially true when you wait for the lettuce to rise full - sizing loose leave or mature heads , alternatively of picking all or most of the crop at the microgreen or baby leaf stage .

A lack of nutrients , in particular nitrogen , can make this leafy green ’s increase to be stunted , or make it edge up so slowly it ’s ineffective to produce soft , tender leave before it quite literally goes to seed .

Like many other type of cool - weather greens , all varieties of lettuce are intemperate feeders , and take ample nitrogen in particular to control a healthy starting time , followed by a return of tasty crispheads or loose leaves beforehand of bolting .

Before you sow or transplant , work a accomplished plant food , like a production with an NPK proportion of 13 - 13 - 13 , into the soil , or bestow hatful of composted manure or other organic matter . Be certain to do this forward of seeding so you wo n’t sear the seedlings .

Unless you ’re planning to harvest only baby leaves or microgreens , also side - frock the young plants every three weeks during the time of year with a high - N fertiliser .

Alsoconsider planting bean or other legumesthat repair N in the soilas companions , or rotate crop so yourL. sativacultivars follow beans in sequential season .

3. Aster Yellows

Lettuce is one of 100 of plants affected by aster yellowness disease , which is induce by microscopic phytoplasmas that act much like bacterium . The phytoplasmas are in the first place transferred by leafhoppers .

In addition to creating pinkish or tan spots on the leaves and twisted leaves in the core , aster yellow can make your harvest taste terrible .

There ’s no cure for aster yellowness , so the well approach is bar . This involve planting repellent salmagundi , removing diseased plant life from the garden , and preventing or eliminating plague by the dirt ball that carry this disease .

Learn more about aster yellows detection and bar in our scout .

Can You Fix Bitter Lettuce?

I ’m no quitter , and I am one of the most sparing hoi polloi you ’ll ever encounter . But I still wo n’t recommend putting a mess of effort into trying to make bitter lettuce predilection better .

It ’s a lot of work for a crop you could far more easily replant in the fall or next spring .

bear in mind you , the off - tasting leaves resulting from poor environmental conditions are dead safe to eat . It ’s only the flavor that suffer when you let the plants bolt in the hotness or do n’t irrigate them decently .

Aster yellows - afflicted plant should be destroyed , not try out .

When the green have just a trace of bitter flavor , it is potential to just part the leave from each other or the core , and gazump them in a quart of shabu water mixed with half a teaspoon of bake soda ash for a couple of hours .

Then rinse them , let them dry , and cool down them in the fridge for up to two days before consuming .

In my experience , this will take the boundary off of the intense flavor , but it wo n’t obviate bitterness tout ensemble .

you could also use just a few more or less off - tasting leave of absence in a mix of greens that include sweeter assortment , like mâche , also known as edible corn salad or lamb ’s lettuce .

Once the rough flavour has become permeating , though , the only result is to saute the jet in olive oil for three or four minutes on intermediate warmth , and stir in a little bit of table sugar and a squeeze play of lemon juice just before serving .

This mixture savor okay , but it is n’t a side dish I particularly look forward to . When you ’re determined to feed the greens you grew , it can attend to as a stopgap measure until you glean a ranking lot .

If a 2d sowing is n’t feasible for you or you ’d hate to hold off another 40 to 70 days for it to grow , you still do n’t have to make do with the rough smack of overgrownL. sativa .

Instead , embed a passel of promptly - producing microgreens to get your lettuce fix in just 10 to 14 days .

Learn more about growing microgreens in our guide .

Not Bitter Is Better

I do so go for you ’re capable to avoid grow lettuce with that acid flavor , so you’re able to enjoy this delicious crop from the first tender baby leaves to the full - size of it , crispy heads .

A steady supplying that comes directly from the garden to the table will raise your home menu and encourage healthful eating .

And if this advice tally the mark , here are some morelettuce guidesfor you to show next :

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Rose Kennedy