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Stark® Raspberry Food

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  • 3 or more: $9.99 each
Item #H1013, 1 Pound


Strengthen roots and boost yields! This specially formulated 20-21-20 raspberry fertilizer is recommended for use on new or established beds. Mix and dissolve 4 ounces of water-soluble fertilizer per 1 gallon of water. Use in early spring as directed for red, gold, purple and black raspberries. Package treats a linear 80-foot area.

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Questions & Answers

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Browse 9 questions Browse 9 questions and 38 answers
Why did you choose this?
Stark Bro's Store
Reports that it works well
Malcolm on Apr 11, 2019
Donald S on Apr 1, 2019
Reports that it works well
Malcolm on Apr 11, 2019
We had an abundant fruit production last year using this fertilizer.
Cynthia A K on Apr 3, 2019
Donald S on Apr 1, 2019
Recommended by Stark for my raspberries
Terry B on Mar 31, 2019
Great product!
Linda Z on Mar 30, 2019
I am struggling with my raspberry plants and I wanted to try your raspberry food.
KEVIN D on Mar 29, 2019
To get plants off to a great start
Doris N on Mar 24, 2019
I felt it would be a good start for my raspberries.
EDWARD S on Mar 13, 2019
For all my berry plants. I trust Stark Bros
Betsy B on Aug 4, 2018
I have one raspberry bed and am starting another new one this spring and want to feed them the best to increase health and yield.
Pat N on May 12, 2018
I want to ensure good growth for my raspberries.
Lisa J on May 10, 2018
This is the 5 or 6th year for my raspberries, and I grow them in a large patch. While I have gotten excellent harvests, I feel they need the extra boost this will give them.
APRIL R on May 1, 2018
Wanting to keep our black raspberry patch producing lots of berries for years to come.
David J on May 15, 2017
To increase yield. i love raspberries!
Linda D on Apr 21, 2017
Excellent results with this berry specific fertilizer.
Kjestine E on Feb 24, 2017
Think my canes need a boost !
Pamela Q on Feb 20, 2017
Think it won't hurt to help the plants along. Other reviewers had good comments about helping plants to grow and fruit.
Leona L T on Oct 7, 2016
formulated for raspberries
CASSANDRA L on Oct 5, 2016
Raspberry patches need a boost.
RICK W on Oct 3, 2016
Works great as well for my Blk Raspberries, full and great looking berries every year with this product.
TRACY V on May 13, 2016
I bought the strawberry food which works wonderful in my garden. So now I've decided I need this one as well.
Kimberly V on Apr 29, 2016
My Red raspberries flourished with this last year and my black raspberry plants are doing well; so I intend to continue using this great product.
Kimberly B on Apr 12, 2016
We used this last year for the first time and had a bumper crop of blackberries, more than the plants have ever produced.
RITA R on Mar 23, 2016
I always forget to fertilize and thought that this would be handy if I bought it now.
GUY S on Mar 16, 2016
Don't remember using this before but because of the blackberry food, I will try this to see if it works as well on my raspberries.
Alice F on Mar 8, 2016
No-hassle plant maintenance.
Barbara I on Feb 25, 2016
We had an abundant fruit production last year using this fertilizer.
Cynthia A K on Apr 3, 2019
Recommended by Stark for my raspberries
Terry B on Mar 31, 2019
How often during the season do you apply this product? Thanks
greasewood on Feb 23, 2017
BEST ANSWER: I applied this product only at the beginning of the spring . . .
What is best way to prevent weeds in raspberry beds?
Johnnie Vee on Feb 27, 2017
BEST ANSWER: We put a fluffy, non-compacted, 4-6" layer of straw (not hay!) across the raspberry bed. A few weeds came up but they had no solid ground to root into so they were simple to pull when they emerged.
Can this fertilizer be used on established beds? My plants are not producing...very little raspberries. This is an older bed. I'm planning to plant some Stark Latham raspberries in the spring, too. Thanks for your help!
Kathy on Nov 10, 2016
BEST ANSWER: Raspberries often benefit from heavy cultivation and pruning. Starks raspberry food has been doing very well for me. I also add a little compost each season.
How soon can you water after you use the fertilizer?
Leonard J on Jun 11, 2018
BEST ANSWER: I don't fertilize if we are having hot dry weather. I like the ground to already be moist through rain or watering. Mix the dry raspberry fertilizer with water according to instructions on package. After fertilizing, if it hasn't rained for 2 or 3 days you can water your raspberry plants. I use the raspberry fertilizer about 3 times in the Spring to early Summer. Very healthy plants with tons of berries. Have fun.???
Once applied, how long does this feed for? Thanks!
JPAYNE on Nov 16, 2018
BEST ANSWER: You only have to use this once in the spring, when the plants come out of dormancy.
can this be used for boysenberry plants too?
Kathy on Oct 1, 2018
BEST ANSWER: The Stark?? Blackberry Fertilizer formula would be closer to what you would need for boysenberries. I tried it for the first time this year in my home garden and really noticed a difference. Here is a link to that page: //
Is it necessary to weigh this product on a scale to four ounces as stated on the label or can one estimate that 1/2 cup per gallon is four ounces?
Luigi on Oct 2, 2017
BEST ANSWER: Yes, a half a cup is oz . Either way works
How much is too much? I mixed up a gallon and poured it along my one row (`~20 ft) of 6 raspberry plants. It didn't really saturate around the plants, but I don't want to overdo it!
Lindsey on Apr 11, 2017
BEST ANSWER: You're good! That is exactly the right amount. The next rainfall or watering will distribute the food down further into the soil. One gallon of solutions treats a 20' row, so you are spot on.

Customer Reviews

4.9 / 5.0
17 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
200% growth
I used this product, applied it according to instructions. Nothing has ever worked as good. My plants tripled in size and I have harvested more berries this year than the last 4 years combined. Plants not only showed good growth but new shoots are sprouting everywhere.
June 16, 2016
over 3 years ago
Raspberries are freakin' out - great stufff
I put in 6 bare-root plants from Stark last year in an amended bed. I had berries in Sept. used this food this spring, and the plants are going crazy with new growth.
May 21, 2016
over 4 years ago
Must have helped
Must have helped as my Jersey Raspberry plants produced tons of berries. This was my first time planting and I did nothing but feed the plants. Oh yeah....I also ate a ton of berries as a result!
May 12, 2016
over 3 years ago
Big Spring Kick....
I just planted new bare root raspberry plants. I gave them Stark's Raspberry Plant Food at planting. All 6 different cultivars, a total of 24 plants have taken off.
I will use this product in the future.
May 20, 2016
over 2 years ago
Hold on Tight!
This fertilizer really kicks into high gear about 2 weeks after application. My Raspberries are giving me about a quart a day right now, some canes are as tall as I am.
August 7, 2016
over 4 years ago
Raspberry Foood
I use the raspberry food every spring and always have wonderful crop of raspberries.
March 18, 2016
over 3 years ago
this product is great
I used the raspberry food early this Spring on my two rows of raspberries (about 80 feet long). We had the most incredible harvest of raspberries this year! We made so much jam, juice, pie, vinegar, and froze a ton of berries. We almost couldn't use all of the harvest - there was so many berries! I will use this product every year.
August 25, 2016
over 2 years ago
Rasberry food
the best I have ever used, it is responsible for an increase of production of 50%
August 11, 2016
over 2 years ago
Raspberry food worked like a charm. I had the biggest berries on the east coast!
May 7, 2017
over 3 years ago
growing fast
the plants established quickly and are growing fast
June 2, 2018
over 2 years ago