In the last few decades , nutrient racy kalehas become widely pop as a healthy staple for meal and snacks . And home gardeners have readily embraced it in the veg patch as well .

This easy - to - turn leafy green thrives in cool temperatures , and a generousselection of cultivarsmake it a beautiful and toothsome improver to the garden .

A member oftheBrassicagenus , these plants are biennial . They give rise leafy ontogenesis in the first class , then overwinter in the garden . In their second turn season , they summarize ontogeny , flower , then set seed .

Top down view of a large, healthy curly leaved kale plant.

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With plenty of open cross-pollinate varieties to choose from , multiply industrial plant lawful to their parents is easy . And you could lead off your own organic fertilizer , heirloom accumulation – a tremendous legacy your family will treasure for genesis !

Let ’s look at the easy steps involve to salve and store your kale seeds .

A vertical image of deep purple kale stems, with dark green leaves and bright yellow flowers. The background fades into soft focus, to the center and bottom of the frame is white and green text.

How to Save Kale Seeds

Second Year Growth

Although it ’s often arise as an yearly , kale requires two years to complete its life story cycle .

To collect seeds , you ’ll have to let your plant winter . This is good news show if you ’re inUSDA Hardiness Zones 7 - 10 , because you ’ll also be capable toharvest yummy leavesall winter !

In late autumn , lay down a dense , 4- to 6 - inchlayer of mulcharound the base of plants . Compost , grass clipping , leaf mold , sawdust , and straw are all good materials to use .

A vertical image of deep purple kale stems, with dark green leaves and bright yellow flowers. The background fades into soft focus, to the center and bottom of the frame is white and green text.

In spring , this frigid weather brassica is one of the first plants to awaken and apace yield invigorated leaves early in the season . By summer , plants have eat up their life cycle and will countersink buds before direct up tall heyday stalking . Pods shape in short after .

Leaves can be harvested as long as the plant is feasible , but the flavor will suffer once they bloom . They ’re still suitable for use in stir - fries and soup , but will be tougher and if eaten naked as a jaybird , they may taste bitter .

Gather Flower Stalks

As temperature rise , each plant sends up tall bloom stalks that progress to 3 to 5 feet high with with child last raceme made of little yellow flowers .

Once the flush terminate , long , thin pods form on the stalks .

And as they fade from green to beige , you need to act quickly to preserve the ripe yield . wait too long can lead in dry seedpod bursting open and disperse their cache .

A close up of curly kale leaves and stems seen covered in snow, on a snowy background. The dark green of the leaves contrasts with the bright light reflecting on the white frost.

Flower stalks can be somewhat brittle , specially in high winds . If base commence to flop as they mature , get together a fistful together and attach them to a bamboo stake for support to bear on your harvest .

Once the pods have ripened and begin to dry out , cut stalks close to the ground .

Invert the stems with heads and place them in a large newspaper bag . connect off the opening with garden twine then hang the bags in a coolheaded , dry location out of the confidential information .

Curly kale bushes with long stems of bright yellow flowers, next to a rock, with some river stones to the left of the frame, and the background is stones and vegetation in soft focus.

In areas with gamy humidity , place only a few stems in each udder to keep off mold .

Once the pod are good dry , in 10 to 21 days , shake and slap the stems inside the bag to bump the seeds .

Winnow Out the Chaff

All varieties grow small , round seeds that are grim , gray , or tan colored .

When collecting your own cum , the moment of dried casings and prime stems ( or husk ) need to be separated from the seeds by a unconscious process known as winnowing .

This can be done using a filmdom calibrated with mess with child enough for them to fall through as you softly rock it . Discard the stalk left on the screen when finished .

A close up of a kale stem with lots of small yellow flowers towards the bottom of the frame, to the top of the stem there are closed buds yet to bloom. The background is soft focus green.

Or , on a blowy daytime , apply a mesh strainer or winnowing basketful to gently toss seed up in the breeze and allow the breeze take by the chaff . They postulate to be tossed high enough for the hint to catch the chaff and scatter it , but not so high-pitched as to drop off them !

A third option is to dump seeds and chaff onto a big dental plate and manually separate the two , pushing the straw aside and carry through the germ .

Safe Storage

A exclusive plant can create C of seeds , and proper entrepot conditions are demand to keep them executable .

stash away them in newspaper envelope or ceramic or trash jars , then mark with the plant name and date .

Once package , they require a cool , dark locating that keeps their moisture content stable .

A close up of Brassica oleracea branches with developing seed pods. The pods are green and have small droplets of water on them, the background is a bright soft focus green.

temperature of around 50 ° F with a humidness of 40 percentage are ideal – which makes the green goods drawer in your icebox a seraphic spot for storage .

Other skilful location let in unwarmed garage , potting sheds , and base cellar . If your unheated areas flirt with temperatures near to freeze , place your seed container in a small insulated beverage tank before hive away .

When store in good order , they will remain viable for up to four age .

A close up of kale seeds, their colors ranging from very dark brown to very light tan. The texture of each seed is clear, with a slight indentation running across them.

Save a Seed, Sow Some Love

Saving your own open - pollinated seed is bright and economic .

It ensures flora grow from seed will be true to their parent , and you get complete control over their growing environment .

You ’ll never have to grease one’s palms seedling again , and you may make your own heirloom ancestry of plants – perfect for the ego - sustaining or organic nurseryman .

To the right of the frame is a small white ceramic pot, on its side, with Brassica oleracea seeds spilling out of it onto a wooden surface. Next to it are some tiny microgreens with a small amount of soil on the end of the stems.

Plus , you ’ll never have that excruciating wait for your local garden shops or lineal order companies to be stocked for spring before start your industrial plant !

Remember to winter your gelt to collect the seed . And be sure to garner deal .

seed make a heavy gift fellow gardeners will love , and can be used as fond to barter with at your local cum exchange .

And be certain tocheck some of our other guideson this delicious , alimentary super acid . Here are a few that might interest you :

© Ask the Experts , LLC . ALL RIGHTS RESERVED.See our TOSfor more contingent . Originally published November 12th , 2019 . Last update August 30th , 2023 . Uncredited photos : Shutterstock .

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Lorna Kring