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Soil Preparation


Staff member
Dec 14, 2023
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Before we expanded our farm, we grew an insane number of flowers on our 2-acre plot of land. With so much beauty going out the door, we worked diligently not only to replace the biomass, but also to build and improve the soil every season. I’ve found that the old adage “you get out what you put in” sums up our approach to growing here at Floret.

Cover crops, compost, rock powders, natural fertilizers, mulch, compost tea, and various foliar treatments are all part of our fertility toolbox.

Floret soil and bed preparation
Every fall, we take soil samples from our fields and greenhouses and send them to the local soil lab for testing. The information from the test gives us a broad overview of our soil health and what we can do to improve it. A good soil test normally runs less than $100—money well spent in the long run. This test measures everything from the percentage of organic matter to the pH of the soil, plus any lacking trace minerals.

A good lab will give you recommendations on which amendments to apply to bring your soil into good working order. I always make sure to let the lab know that we farm organically so they don’t suggest chemical fertilizers. Once we have the information back from the lab, we set about making necessary improvements. Fall is a great time to add rock powders and trace minerals so they’ll have time to dissolve into the soil before spring planting.

soil preparation at Floret flower farm
Our farm is situated on top of a sandbar (note the silver shine to the soil shown above), and while its ability to drain freely is wonderful in early spring when most other fields are unworkable, it definitely comes with its own set of challenges. In addition to being very hungry, our soil has difficulty holding water and nitrogen. We add so much organic matter each year that I often feel as if we’re feeding an elephant.

In addition to applying the soil lab’s recommended nutrients in the fall, we also heavily amend each bed before planting in early spring and again each time we replant throughout the season. The same treatment goes for our greenhouse plantings.

Compost and organic fertilizer for bed preparation

Floret bed preparation adding compost
Floret bed preparation adding compost
To start, we put down a thick 3- to 4-in (8- to 10-cm) layer of compost across the top of each bed, making sure to spread it out as evenly as possible. Our favorite compost is made locally from recycled plant debris. We purchase it by the dump truck load, and it runs $25 to $30 a yard, delivered. If you have heavier clay soil, you can cut the amount of compost you apply in half.

Floret bed preparation adding organic fertilizer
We then sprinkle a generous dusting of a high-quality organic fertilizer at a rate of 1.5 lb per 10 linear ft (0.68 kg per 3 m) which, for us, is 10.5 lb per 70-ft-long (4.76 kg per 21.3-m) row.

One 50-lb (22.6-kg) bag covers about five of our 4- by 70-ft (1.2- x 21.3-m) growing beds.

Our favorite fertilizer is Nature’s Intent (7-2-4), which is made from natural ingredients including bonemeal, cottonseed meal, feather meal, kelp meal, and rock powders. It may not be available in your area, but you should be able to find something similar if you give the specifications to your local feed or garden store.

Tilling compost and organic fertilizer into flower beds
Drip irrigation onto flower bed preparation
We then till ingredients into the soil and lay irrigation lines. Because our soil is so sandy, we put down four lines of drip tape, 1 ft (30 cm) apart. If you have clay soil, you could probably get away with only two or three lines.

Floret bed preparation adding landscape fabric
mulching dahlias at Floret Flower Farm
To control weeds, we cover most of our beds with landscape fabric that has preburned holes. Learn more about using landscape fabric to control weeds.

For beds that aren’t covered in landscape fabric, we mulch new plantings with straw, shredded leaves, or grass clippings to help retain moisture and suppress weeds. Once plants are in and growing, we feed them with a weekly application of compost tea.

After a bed of annual flowering plants such as bells of Ireland or snapdragons finishes producing, we mow the remaining foliage down and take up the fabric, pull back the drip irrigation lines, and amend the bed using the same process outlined above—before replanting with a second crop. In the fall, we clean up the beds and replant with a cover crop, usually a combination of rye grass, field peas, hairy vetch, and crimson clover.

While the process is labor-intensive, it has greatly increased the health of our plants on the farm, in turn upping our flower production across the board and decreasing insect and disease pressure.

Floret hoop house flower bed soil preparation
Floret hoop house flower bed soil preparation
Floret hoop house flower bed soil preparation
Floret hoop house flower bed soil preparation with landscape fabric
The hoop house pictured above was filled with Iceland poppies in the spring. Once the plants slowed their flowering to a trickle, we pulled them out, prepared the beds as described above, and replanted with a late crop of celosia.

floret celosia growing in hoop house
I believe in using natural methods and ingredients when it comes to growing. In our valley, organic agriculture is slowly catching on, but there are still many farms that spray toxic chemicals on their crops and use synthetic fertilizers and other agrochemicals. I understand why. An organic approach requires more time, money, and steps. But in my opinion, if you have the choice, it’s worth considering.

From day one, we’ve only used natural ingredients in our gardens and on the farm. I don’t want to expose myself, our staff, visitors, or the creatures that live here to toxic chemicals.

But most importantly, my children have grown up in the garden, and I wanted their home and play areas to be safe and free from anything toxic or harmful.

I never could stomach the idea of exposing them to poisons just so I could get a perfect crop. Instead, I worked extra hard to grow the healthiest plants possible that could resist pests and disease on a diet of only natural ingredients.

At some point, children on the farm will probably come in contact with whatever you use in the soil and apply to your plants. And for all you animal lovers, the same is true for pets. Growing naturally is harder and a bit more expensive, but I truly believe it shows in the quality of the flowers and in your and your family’s health.

The photo below shows Jasper when he was little, spraying an early crop of spring flowers with compost tea, a safe, effective, and natural disease preventative.

foliar feeding young flowers with compost tea
I would love to hear any questions you have about feeding your soil. What practices do you follow? Do you have any great resources relating to this topic that you’d be willing to share with others?

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