Produce & Flowers

Jupiter Ridge Farm

Owner: Adrian White

35217 Jupiter Rd.
Garber, IA 52048
Clayton County

daytime phone: (563) 321-2829
evening phone: (563) 321-2829
Web site:

Application Date: 2021-03-15

Applicant Details

Please briefly tell us why you are applying to be part of the Certified Naturally Grown program: *
We (Adrian White and William Lorentzen, co-owners and operators) farm using sustainable practices and are both very experienced. We farm on our land through the Sustainable Iowa Land Trust (SILT) which requires to have a 3rd party certification, and because, after examining our markets, the USDA Certified Organic sticker would not add as much value to our product for our sales (most of it direct sales/marketing). We were planning on being USDA Certified Organic but due to lack of income during the pandemic year and raised costs, we decided it was not the best value for us - and since CNG seems tailored to small farms that use organic practices and direct market anyway, we were drawn to your certification program. We use cover crops, crop rotation, only OMRI approved inputs when necessary (and only in curative instances rather than preventative), reduced tillage, a huge focus on soil microbial life and soil work. We grow mushrooms (shiitake, lion's mane, oyster mushroom) on natural hardwood logs that we sustainably harvest (using responsible forestry techniques or sourcing from the waste stream) and using certified organic mushroom spawn.
Are you currently third party Certified for your produce operation by any other organization (Organic, Biodynamic, etc)? *
Have you ever been certified in the past? *
Have you ever been denied certification? *
How did you hear about Certified Naturally Grown? *
Through the Sustainable Iowa Land Trust (SILT) as one of their required third-party certifiers.
How did you learn to farm, and for how long have you been farming for market? What has prepared you to farm successfully according to CNG standards? *

General Farm Information

Farm Acreage you want listed as Certified Naturally GrownTM:
Total Farm Acreage you actually GROW on: *
Number of above acreage that you own: *
Number of above acreage that you lease: *
Do you have other acreage in "Conventional" Agricultural Systems? *
General Listed Acreage Breakdown
Veg Crops:
Fruit Crops:
1/8 Acre
Other Acreage:
3/8 acre for mushroom production
Please check all items you grow and will market as Certified Naturally GrownTM *

Please Specify Any Other Items:
Please check all markets you grow for (this will be displayed on your farm profile to help potential buyers find you). *

Please Specify Other Markets:
Direct Sale through Online Shop

Farmland Management and Practices

Primary Tillage System: *
Reduced Tillage using 3 foot tiller and walk-behind tiller
Do you use Cover Crops? *
If yes, please list: *
Oats, peas, winter rye, vetch, buckwheat, sorghum
Do you use Compost? *
Do you use Manure? *
Please list any other brought in fertility sources that you use (specific rock powders, lime, soybean / alfalfa meal, specific purchased pre-mixes, etc)and how often it's used. If you indicate a name brand product, please also specify the ingredient/s. *
Gypsum, sunflower hull ash, soybean meal (ground-on site from certified organic soybeans), lime, peat moss, kelp, OMRI approved granular and rock phosphate, yucca wetting agent (OMRI approved), OMRI approved potassium sulfate, hydrolyzed soy protein, legume inoculant (NDURE) for nitrogen fixation throughout crop rotation with light feeders, cover crops, green manure, mycorrhizal inoculants
Have any chemical fertilizers been applied to the fields you are seeking Certification for in the last three years (36 months)? *
Have any non-acceptable pesticides and/or herbicides been applied to these fields in the last 3 years? *
Do you use Professional Soil Testing services? *
Describe your primary weed problems AND methods of control. Do not answer "none". You MUST indicate either actual weed challenges and/or LIKELY challenges, and you must ALSO indicate how you manage (or would manage) them. If you indicate a product, also specify how often it's used. *
Primary weed problems: dealing with annual grasses and perennial prairie grasses like bluestem (we are surrounded by an extensive prairie buffer), pigweed/amaranth, velvet leaf, lamb's quarters; small amounts of thistle, bindweed; purslane. We handle this using hand removal/weeding, weeding tools (hula hoes and other types of hoes), tractor cultivation and mowing, natural mulches, cover-and-smother crops, and reusable plastic mulches.
Describe your primary insect challenges AND methods of control. Do not answer "none". You MUST indicate either actual pest challenges and/or LIKELY challenges, and you must ALSO indicate how you manage (or would manage) them. If you indicate a product, also specify how often it's used. *
Colorado potato beetle, grasshopper, hornworms, aphids, cabbage looper, cut worm, flea beetle, cucumber and squash bugs, some Japanese beetle but not too bad. Means of pest control: hand removal, maintaining beneficial insect habitat (surrounding prairie buffer, such as soldier bugs - they've been really helpful to us!), leaving important prairie plants in place, deferring chemical use if beneficial predators are present, floating row cover inside greenhouse for preventative measures, keeping weeds and plant debris (pest habitat) away from crops, mowing; applications of kaolin clay for squash bugs, BT (OMRI approved) curative spray, beneficial nematodes, Pyganic (OMRI approved) curative spray, Spinosad (OMRI approved) curative spray
Describe your primary disease challenges AND methods of control. Do not answer "none". You MUST indicate either actual disease challenges and/or LIKELY challenges, and you must ALSO indicate how you manage (or would manage) them. If you indicate a product, also specify how often it's used. *
Downy mildew, powdery mildew, late blight (tomatoes), leaf spot, black rot (cabbage). Preventative measures: plenty of airflow, hydrogen peroxide sprays (for curative issues too, biofungicide, crop rotation, pest control, hand removal/culling of disease plants and foliage/other plant parts.
Please list the water source you use for crop irrigation. If source is public river, pond or lake, please note the name: *
Are there any known contaminants in the irrigation water? *
Are you a maple producer who seeks to certify your sugarbush? *

Seeds, Transplants and Buffers

How do you select your seeds? CNG standards call for growers to make a good faith effort to locate organically grown seeds by contacting at least 3 major suppliers. *
Certified Organic seeds only.
Do you purchase or grow using any Genetically Modified seeds? *
Do you use any chemically treated seeds in your operation? *
Do you grow your own transplants? *
Do you purchase potting soil, or do you mix your own on the farm? *
Mix our own
What ingredients does your potting mix contain? If you purchase a mix, please also indicate which product. *
Peat moss, vermiculite, perlite, sunflower hull ash, gypsum, lime, soybean meal, alfalfa meal, kelp meal, natural wetting agent (yucca), mycorrhizal inoculant, OMRI-approved rock phosphate
Are all of your transplants grown according to CNG standards, without synthetic fertilizers or wetting agents? *
If any transplants are not grown according to CNG standards, please list them here. (If they all are, put "N/A".) This produce may not be marketed as Certified Naturally Grown. *
Do you purchase any transplants from outside sources? *
Chemical/Spray Drift and Buffers:
Is there any likelihood of Chemical/Spray drift contamination of your fields? *
Do you have an adequate buffer to protect yourself from potential contamination? *
Please describe your buffer. Be as specific as possible. On all sides, how far is it from your crops to the next closest use (road, conventional crop, residential yard)? Be sure to specify what is grown on neighboring land that is in agricultural use. For example: To the north and east, a wooded area of at least 100 yards separates us from the neighbor's corn fields, to the south is a fallow field at least 100 yards deep separating us from the road, and to the west about 60 feet separates our crops from a field where conventional corn and soybeans are grown. *
We are bordered on the east by a road that is at its closest over 150 feet away from our farm (which is itself bordered by timber on the other side), to the south by timber and neighbor's cow pasture (which he does not spray), to the west also timber and a different neighbor's cow pasture (which he does not spray), to the north the same: timber and cow pasture that does not get sprayed. We are located atop a 1200 ft.-high bluff that would make any distant chemical drift very difficult if not impossible to reach us.


Please indicate your agreement with the following statements by checking the boxes.
I will not label, or in any way lead consumers to believe that produce not raised in accord with CNG standards is Certified Naturally GrownTM. *
I understand that I have to complete at least one (and hopefully more) Certification Inspection(s) of another farm in my area each year, and that the inspection will NOT be of the same farmer that inspected me. *
I have reviewed the Certified Naturally Grown certification standards, I understand them, and I will abide by them. I understand that if I have any questions I may contact CNG for clarification. *
You may use this space to tell us anything else you think we should know about your farm:
We have both been farming for over 10 years on our farm and on others (where we have worked at, managed, interned, or volunteered) that have made it a priority to use sustainable standards only. We are committed to doing the very same here on our land and in our business.