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The best time to plant rhubarb in Kansas is in early spring, as soon as the ground can be worked.
This typically means late March or early April, depending on where you are in the Sunflower State.
If you’ve been wondering when to plant rhubarb in Kansas, the short answer is that you want to get those crowns in the ground before the heat of summer arrives.
Rhubarb is a cool-season perennial, so it actually prefers those crisp, chilly days of early spring to establish strong roots.
In this post, we’ll break down the best planting windows, what to consider for your specific Kansas region, and how to give your rhubarb the best chance at thriving.
Let’s dig into everything you need to know about planting rhubarb in Kansas.
When To Plant Rhubarb In Kansas: The Ideal Window
The ideal time to plant rhubarb in Kansas is early spring, typically from late March through mid-April.
You want to plant rhubarb in Kansas when the soil temperature is still cool, ideally between 40°F and 50°F.
This gives the crowns a chance to develop their root system before the air temperatures start climbing.
If you’re wondering when to plant rhubarb in Kansas specifically for your area, you’ll need to consider whether you’re in eastern or western Kansas.
Eastern Kansas tends to warm up a little earlier, so you can often plant rhubarb in late March.
Western Kansas, which can see later frosts, might be better suited for a mid-April planting date.
The key is to plant rhubarb in Kansas as soon as the soil is no longer frozen and is workable enough to dig.
Waiting too long into May is a common mistake, because rhubarb doesn’t like hot, dry conditions when it’s trying to get established.
1. Why Early Spring Is Best For Planting Rhubarb In Kansas
When you plant rhubarb in Kansas during early spring, you’re syncing the plant’s natural growth cycle with the environment.
Rhubarb actually needs a period of cold dormancy to produce well, and those chilly Kansas winters provide that naturally.
By planting in early spring, the crowns wake up slowly with the soil, which reduces transplant shock.
This is why planting rhubarb in Kansas in March or April is so effective, it mimics the plant’s native cool climate.
2. Can You Plant Rhubarb In Kansas In The Fall?
While early spring is the prime time to plant rhubarb in Kansas, fall planting is also an option for some gardeners.
If you’re aiming to plant rhubarb in Kansas in the fall, you’ll want to do it in late September or early October.
The idea is to get the crowns in the ground about six weeks before the first hard freeze.
However, fall planting rhubarb in Kansas is riskier because the young roots may not have enough time to establish before winter sets in.
For most Kansas gardeners, spring remains the safest and most reliable time to plant rhubarb.
3. How Soil Temperature Affects When To Plant Rhubarb In Kansas
If you want to be precise about when to plant rhubarb in Kansas, check your soil temperature with a simple thermometer.
Rhubarb crowns will start to grow when the soil reaches about 40°F.
You can plant rhubarb in Kansas when the soil is still cool, but it shouldn’t be waterlogged from spring rains.
Soggy soil can cause the crowns to rot, so if your garden is too wet in early March, wait a couple of weeks.
The sweet spot for planting rhubarb in Kansas is when the soil is moist but crumbly, not sticky mud.
Regional Considerations For Planting Rhubarb In Kansas
Kansas is a big state, and the answer to “when to plant rhubarb” can shift slightly depending on your local climate zone.
If you live in northeast Kansas, around Topeka or Lawrence, you can usually plant rhubarb in early April.
For gardeners in south-central Kansas, like Wichita, the warmer spring means you can often plant rhubarb a bit earlier, in late March.
Out west, in places like Garden City, the higher elevation and drier air mean a slightly later planting date is wise.
The most reliable way to know when to plant rhubarb in Kansas for your exact spot is to watch your local forecast.
Aim to plant rhubarb when there’s no longer a threat of a hard freeze in the next two weeks.
1. Choosing The Right Rhubarb Varieties For Kansas
Once you’ve nailed down when to plant rhubarb in Kansas, you need to pick a variety that handles the heat.
Varieties like ‘Victoria’ and ‘Canada Red’ are excellent choices for Kansas gardens.
These types are known for their tolerance to warmer temperatures while still producing thick, tasty stalks.
When you plant rhubarb in Kansas, avoid varieties that bolt too quickly in heat, as they’ll go to seed instead of growing leaves.
2. Preparing Your Soil Before You Plant Rhubarb In Kansas
Timing matters, but so does soil prep when you plant rhubarb in Kansas.
Rhubarb loves rich, well-draining soil with a pH between 6.0 and 6.8.
Before planting rhubarb in Kansas, work in a few inches of compost or aged manure to give the crowns a nutrient boost.
Since Kansas soils can be heavy clay in some areas, adding organic matter improves drainage, which is critical for rhubarb.
Do this prep a week or two before your planned planting date so the soil has time to settle.
How To Plant Rhubarb In Kansas For Success
Now that you know when to plant rhubarb in Kansas, let’s talk about the how.
Dig a hole that’s about two feet wide and one foot deep, as rhubarb roots spread out quite a bit.
Place the crown so the buds sit about an inch or two below the soil surface.
If you plant rhubarb in Kansas too deep, the crown can rot, but too shallow means it may dry out.
Space each crown at least three feet apart because rhubarb is a heavy feeder and needs room to grow.
After you plant rhubarb in Kansas, water it thoroughly and add a layer of mulch to retain moisture.
1. Watering And Feeding After You Plant Rhubarb In Kansas
Rhubarb needs consistent moisture, especially during its first growing season.
When you plant rhubarb in Kansas, plan to water deeply once a week if rain is scarce.
A balanced fertilizer applied in early spring, around the time you plant rhubarb, will help establish strong canes.
Avoid overfeeding, though, as too much nitrogen can lead to excessive leaf growth at the expense of stalks.
2. What To Expect In The First Year After Planting Rhubarb In Kansas
Patience is key when you plant rhubarb in Kansas, because you shouldn’t harvest stalks in the first year.
The plant needs that entire first season to build a robust root system.
In year two, you can harvest a few stalks, but it’s really year three when you’ll get a full harvest.
So when you plant rhubarb in Kansas, know that you’re making an investment in future pies and jams.
Just keep the weeds down around the crown, and your rhubarb will reward you for years.
So, When To Plant Rhubarb In Kansas?
When to plant rhubarb in Kansas comes down to early spring, specifically late March to mid-April, depending on your region.
You should plant rhubarb in Kansas as soon as the soil is workable and the danger of deep freezing has passed.
Fall planting is possible, but spring is the time to plant rhubarb in Kansas if you want the strongest, healthiest plants.
By choosing the right variety, prepping your soil, and giving your crowns space, your rhubarb will thrive in the Sunflower State.
So grab your trowel, check that soil temp, and get ready to plant rhubarb in Kansas this spring.
Your future strawberry-rhubarb pie will thank you.