What You Should Be Planting In May Within Interior Alaska

Phew!  You made it through April.  Hopefully you have some nice plants to show for it!

Our indoor garden is bursting at the seams come May! These portulaca flowers are always a favorite, especially when they are young and look like small succulents.With our final April plantings completed, it’s time to start looking at May!  The garden is still only getting started!

May is always an exciting month for us.  The snow finally recedes.  More importantly, the soil starts to become workable.  We can begin direct sowing some of our crops right into our gardens!  How exciting!

May is definitely the point of no return for planting most things that should have been sowed in April.  We would not recommend sowing anything now that should have been sowed in March, there just isn’t enough time left!

The Scope Of May Gardening Within Interior Alaska

We have just a little bit of indoor seeding left.  For May’s indoor planting, we are left with the fastest growing plants of them all!

The biggest change is that we can begin direct sowing our root crops right into the garden!  You want to wait until we get about two weeks or less to last frost.  Some years you can do a little earlier, some a little later.

We gauge this by the weather and wait for low temperatures to consistently in the high 30’s or warmer.  We do try to get most of our root crops planted early so we have more time later in the month when we need to be working with our transplants.

This is a picture of our lettuce starts, which were previously sowed in April.  We have transplanted them into their final pre-transplant home where they will be planted outside in late May!

This is a picture of our lettuce starts, which were previously sowed in April.  We have transplanted them into their final pre-transplant home where they will be planted outside in late May!

The Up-Potting Will Eventually End, We Promise

One of our primary tasks for May is continuing all the transplanting from our seed trays into their semi-permanent transplant pot.  We are looking forward to kicking all the seeding trays out of the grow room and just having more mature plants!  At this point, we absolutely need every square inch that our four seedling trays are currently using.

Fertilize Your Garden Starts

While we grow our garden starts in high quality soil, it’s still usually a good idea to supplement your plants with a fertilizer.  Once your plants have their 2nd set of true leaves, they’re ready for fertilizer.

In early growth stages like this, we like to use a water soluble fertilizer at roughly 1/4 strength to help maintain vigorous growth.

Continue Hardening Off All Our Plants

During May, we will be hardening off all of our plants in preparation of planting them outdoors.  Remember, the end of this month is our last frost, so we definitely need to start focusing on getting them ready to be outside.

Some of our most cold hardy crops will start living outside once evening temperatures are consistently above freezing.  We like to take advantage of May’s decent weather, which also helps us free up some of our indoor space.

Our warm weather crops will be hardened off during May as well.  We will continue to bring them inside until it is very clear our danger of frost has passed.  Once these are hardened off, we will temporarily let them live outside if evening low temperatures are predicted above 50 degrees.

Prepare The Gardens!  It Is Time!

One of the largest tasks for May is preparing our gardens for the year.  We are aiming to try to get the bulk of our plants in the ground by our last frost date, or June 1st!  Sometimes we try to squeak them in Memorial Day weekend!

Preparation of our garden beds typically happens in May. Here we are adding fertilizer and other additives to last the entire growing season.

Our primary garden preparations include cleaning up anything that we didn’t get to last fall.  Many times, we find it easier to let the cold temperatures kill off our plants so they are easier to remove in the spring.

We’re also preparing all of our garden beds.  We add compost to all of our beds and also prepare them with fertilizer, azomite and possibly more greensand.

Also to prepare our gardens, we till up the top layer of our wide raised row community garden to incorporate our compost.  We have found our soil “cakes” pretty bad at this garden and a light tilling is a beneficial practice.

Finally, we’ll be preparing our container gardens.  Preparing our containers is always a lot of work, but a worthwhile effort for the northern gardener.

Sometimes our plans call for the production of quite a bit more soil and we try to get this completed in May.  Basically, we aim to try to have everything ready by the end of the month, or sooner.

The Interior Alaska Planting Schedule For May

May features a fairly light planting schedule overall, with only a single indoor planting scheduled.  The remainder of our plants are direct sowed, right into the garden!

For things that are direct sowed, we are paying attention to the weather.  If late snows or unseasonably cold temperatures are in the forecast, we’ll hold off.  We’re looking for most nights to be above freezing.

5/4/2020

  • Cucumber
  • Melon (Marginal Alaska crop)
  • Sunflower
  • Canary Bird Vine
  • Mignoette
  • Nemophila
  • Sweet Alyssum
  • Zinnia
  • Forget Me Nots

Direct Sow Between 5/18/2020 to 6/5/2020

  • Radish (often succession planted)
  • Spinach (often succession planted)
  • Beets
  • Carrot
  • Parsnip
  • Peas
  • Potatoes
  • Turnip
  • Rutabaga

Our Grow Rooms Are Getting TIGHT!

These are some of our brassicas. In May, we typically want to transition these to our outdoor greenhouse and even outdoors entirely. Cold hardy plants can handle the cool temperatures!With our final plantings, our grow room is always bursting at capacity this time of the year.

Even as experienced gardeners that know how to manage indoor growing space, we always experience some challenges every year.

Throughout May, we’ve started transitioning our cold hardy plants out into our small, temperature controlled greenhouse in mid April.  Throughout most of May, we will be trying to transition our hardiest plants outdoors as soon as we can.

We’re not yet ready to put our cold hardy plants in the ground.  We wait until at least Memorial Day weekend.  But, we will keep our cold hardy plants outside in their trays when evenings are expected to be above freezing.

This is a picture of some of our flowers, Lupine in this case. Frost sensitive plants must be cared for carefully in cold climates as frosts can be quite harmful to them!

In this picture, you can see some of our flowers almost big enough to go outside!  Most flowers are frost sensitive, so make sure you plant them outside well after any danger of frost.

For all frost sensitive plants, we will harden these off during warmer days in May, typically those above 60 degrees.  However, these plants will continue to be raised indoors until outdoor temperatures are suitable for them to live outside.

Since they will be hardened off, we can keep them outside any evening expected to be above 50 degrees.  We usually like to have these plants in the ground by June 5th, except for peppers which stay indoors until mid June.

Garden Projects Can Finally Get Started!

We always have a few garden related projects that we are planning on trying to accomplish.  May is often the month we use to get them started!

One thing we’ve learned is that it can be difficult to do everything, all at once!

It’s not impossible to get big projects completed by June.  For example, we built our greenhouse in May so it would be ready for our summer growing season!

It’s just a good idea to look at your plans realistically, since May and early June have a lot of other gardening activities associated with it!

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