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Squash, Summer, Cosmos Hybrid

Short Description

Compact plants yield bright, sweet, nut flavored fruits.

Full Description

This is one bright summer squash: bright yellow in color and blessed with a bright, sweet, nutty flavor. Vigorous, high-yielding bush plants produce a cornucopia of straight-necked zucchini-type yellow fruit 6-8" long x 1" wide. Luscious flavor: whether grilled, sauteed or baked. Open plant habit and very few spines make for easy harvesting.
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Order: 1 Pkt. (25 seeds)
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Product properties

Type Some flowers and vegetables fall into subcategories that may define how they grow (such as pole or bush), what they are used for (such as slicing tomatoes or shelling peas), flower type, or other designations that will help you select the type of a class of plant that you are looking for.

Summer Squash

Days To Maturity The average number of days from when the plant is actively growing in the garden to the expected time of harvest.

60 days

Fruit Size The average size of the fruit produced by this product.

7-8 inches

Sun The amount of sunlight this product needs daily in order to perform well in the garden. Full sun means 6 hours of direct sun per day; partial sun means 2-4 hours of direct sun per day; shade means little or no direct sun.

Full Sun

Spread The width of the plant at maturity.

24-36 inches

Height The typical height of this product at maturity.

40 inches

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Container Vegetables - Squash & Zucchini
Container Vegetables - Squash & Zucchini
Growing squash & zucchini in containers on your deck, porch or patio!
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Summer Squash, Cupcake Hybrid
Summer Squash, Cupcake Hybrid
Shaped like a cupcake with sweet flavor and soft skin.
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  • Squash

    Start Indoors Start Indoors Starting seeds indoors is called Indoor Sow or Indirect Sow and these dates are when to sow seeds indoors in the spring or summer
    Transplant Transplant When to transplant bulbs or roots in the garden for spring
    Start Outdoors Start Outdoors Starting seeds outdoors is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the spring or summer
    Start Indoors Fall Start Indoors Fall Starting seeds indoors in the fall called Indoor Sow or Indirect Sow and these dates are when to sow seeds outdoors in the fall
    Transplant Fall Transplant Fall Transplant Fall-When to transplant bulbs or roots in the garden for fall
    Start Outdoors Fall Start Outdoors Fall Starting seeds outdoors in the fall is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the fall
    First Date: May-16 - Last Date: Jul-11

How to Sow

  • Sow seeds directly in the garden in fertile, warm soil in full sun after danger of frost has passed.
  • Be sure to choose an area when you did not plant squash or related crops within 2 years.
  • Sow 1-2 seeds about 36 inches apart. Cover with 1 inch of fine soil.
  • Firm lightly and keep evenly moist.
  • Seedlings emerge in 10-14 days.
  • Thin to one plant when seedlings have two sets of leaves.

How to Grow

  • Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their seeds from germinating. 
  • Squash plants have a shallow root system, mulches help retain soil moisture and maintain even soil temperatures.
  • Keep plants well-watered during the growing season, especially during dry spells. Plants need about 1-2 inches of rain per week during the growing season. Use a rain gauge to check to see if you need to add water. It's best to water with a drip or trickle system that delivers water at low pressure at the soil level. If you water with overhead sprinklers, water early in the day so the foliage has time to dry off before evening, to minimize disease problems. Keep the soil moist but not saturated.
  • Squash plants have both male and female flowers on the same plant. Male flowers will open first and the female flowers will open later.
  • Monitor for pests and diseases. Check with your local Cooperative Extension Service for pest controls recommended for your area.
  • Attract bee pollinators by planting daisies such as sunflowers, cosmos, zinnias and coneflower, and mints such as beebalm, sage, oregano and lavender. More bees mean more chances flowers will be pollinated and develop into fruits. Border squash plots with rows of beans, herbs, peppers and tomatoes.

Harvest Summer Squash & Preserving

  • Harvest when fruits are small and the skin is shiny. Harvest often. To keep summer squash producing pick all fruit at this stage. If fruit is allowed to mature the plant may stop producing.
  • To pick summer squash give the fruit a gentle twist until it snaps off.
  • Store summer squash in plastic bags in the refrigerator for up to a week.
  • Male squash blossoms are also delicious and sweet, try dipping in batter and frying.

Harvest Winter Squash & Preserving

  • Wait to until the fruit has matured to harvest.
  • Fruit will have a dull skin that is too hard to pierce with your thumbnail.
  • To harvest, cut fruit from the vine with shears leaving a 2- 3 inch stem on each squash.
  • Allow winter squash to cure in the sun for a week to harden skin.
  • Store winter squash in a cool dry place.
Summer Squash
Days To Maturity
60 days
Fruit Size
7-8 inches
Full Sun
24-36 inches
40 inches
Sow Method
Direct Sow
Planting Time
Spring, Summer
Sow Time
After Last Frost
36 inches
Squash, Summer, Cosmos Hybrid is rated 3.1 out of 5 by 9.
Rated 1 out of 5 by from This isn't Cosmos! The package says it's Cosmos, but I got what looks to to be Early Summer Crook Neck. I love the squash, but the plant is way to big for my raised beds, which you can't even see in the photo.
Date published: 2018-06-17
Rated 5 out of 5 by from Very Happy with Production and size! I actually managed to fit two plants into a 2X3 foot area last season and had incredible harvests. I had prepped the soil with plenty of organic fertilizer and compost and kept it moist through the growing season. I have to keep them covered with Tulle due to the squash vine borer, but they did great until I couldn't keep them covered anymore due to size.
Date published: 2018-04-02
Rated 2 out of 5 by from Not yellow. We have harvested about six squash so far and they are green not yellow so we don't know what they are. They taste fine but not yellow.
Date published: 2017-07-15
Rated 5 out of 5 by from Very good summer squash. I have grown these for several years now. They are very good to eat and very productive, outperforming even the zucchini. The only problem I have had is powdery mildew, but it gets all squash.
Date published: 2017-04-10
Rated 3 out of 5 by from It was a typical summer squash, no better no worse I was surprised the the germination rate was so low. 60-70%
Date published: 2016-09-16
Rated 2 out of 5 by from WTF? Ordered a packet of these Cosmos summer squash seeds, which are supposed to be straight-neck, smooth skinned, and zucchini-like. They are none of these. I was expecting fruit at least similar to those pictured. Instead, I got a crookneck, thick skinned fruit with large bumps, and looking nothing like these pictures. I figured, what the heck, I'll give them a try. Turns out the skin is very tough and unpleasant to eat, compared to a zucchini. Even when picked very small with the blossom still on the end, the mushy seed chamber takes up 60%-70% of the body of the fruit, and is unpleasant to eat when steamed. The overall flavor is bland, not very sweet, with none of the "nuttiness" described. So I tried a more mature fruit. It had even thicker, tougher skin, 70-80% seed chamber taking up the volume of the fruit, with no improvement in flavor. The plants are vigorous, quickly out growing their spot, and are producing prodigious quantities of useless, mediocre fruit. Definitely not worth the money, time, or work to grow these! Certainly NOT AS DESCRIBED!
Date published: 2015-08-06
Rated 1 out of 5 by from Problematic start 1st pkt of seeds dampened off, 2nd pkt didn't germinate
Date published: 2015-03-18
Rated 5 out of 5 by from Great Yellow Squash I felt like I needed to write a review since this squash is definately deserving of a good review. This is a great summer squash and so far as been the best i've grown. The plants are open with large leaves and very easy to pick. We planted them closer than recommended but had no trouble at all with them overcrowdiing each other becuase they stand partially upright. Prolific producer and great fruit. We sautee them with onion and garlic and green pepper with scrambled eggs, or fsautee them with onion and olive oil for dinner, also used them as a layer in lasagna. There is nothing but good things to say about this item. Flavor is great. Once they start producing fruit the fun begins.
Date published: 2014-07-12
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