Richard

Well, the cultivar won't be reproduced true from seed, but the species will. So it depends if you are seeding an F1 hybrid or just a cultivar of red rhubarb. The latter is what I'm growing. The flower by the way, is spectacular.

Now since you are looking for plants to grow, here is the full list of plants I'm currently growing in 4-inch pots

Bell Pepper, Bell Boy
Bell Pepper, Big Bertha PS Hybrid
Bell Pepper, Big Early
Bell Pepper, California Wonder PS
Bell Pepper, California Wonder Yellow
Bell Pepper, Chocolate Beauty Hybrid
Bell Pepper, Giant Marconi Hybrid
Bell Pepper, Golden Calwonder
Bell Pepper, Hershey Hybrid
Bell Pepper, Mini Chocolate
Bell Pepper, Mini Red
Bell Pepper, Mini Yellow
Bell Pepper, Orange Sun
Bell Pepper, Purple Marconi
Bell Pepper, Red Knight X3R Hybrid
Bell Pepper, Red Marconi
Bell Pepper, Super Heavyweight Hybrid
Bell Pepper, Tawny Port Hybrid
Bell Pepper, The Big Early Hybrid
Blueberry, Sharps Blue
Capers
Chili Pepper, Aji Dulce #2
Chili Pepper, Aji Red
Chili Pepper, Anahiem
Chili Pepper, Ancho Gigante
Chili Pepper, Ancho San Luis
Chili Pepper, Ariane
Chili Pepper, Big Bomb Hybrid
Chili Pepper, Big Chile Hybrid
Chili Pepper, Blushing Beauty Hybrid
Chili Pepper, Bolivian Rainbow
Chili Pepper, Bulgarian Carrot
Chili Pepper, Caribbean Red
Chili Pepper, Cascabel
Chili Pepper, Cayenne
Chili Pepper, Cherry Bomb Hybrid
Chili Pepper, Chichen Itza Hybrid
Chili Pepper, Chili de Arbol
Chili Pepper, Chiltepin aka Chili Tepin
Chili Pepper, Congo Trinidad
Chili Pepper, Corno di Toro Red
Chili Pepper, Corno di Toro Yellow
Chili Pepper, Corno Verde Hybrid
Chili Pepper, Cubanelle PS
Chili Pepper, Espanola Improved
Chili Pepper, Fatalii
Chili Pepper, Fish Pepper
Chili Pepper, Fresno
Chili Pepper, Fushimi
Chili Pepper, Giant Szegedi
Chili Pepper, Golden Greek Pepperoncini
Chili Pepper, Grande Hybrid
Chili Pepper, Guajillo
Chili Pepper, Gypsy Hybrid
Chili Pepper, Habanero
Chili Pepper, Habanero Brown
Chili Pepper, Habanero Red
Chili Pepper, Holy Mole
Chili Pepper, Hungarian Wax
Chili Pepper, Italian Roaster
Chili Pepper, Jalapeno M
Chili Pepper, Jaloro
Chili Pepper, Jamaican Hot Yellow
Chili Pepper, Jimmy Nardello
Chili Pepper, Key West X3R Hybrid
Chili Pepper, Large Red Cherry Hot
Chili Pepper, Large Red Thick Cayenne
Chili Pepper, Mariachi Santa Fe
Chili Pepper, Mesilla Hybrid
Chili Pepper, Mirasol
Chili Pepper, Mulato Isleno
Chili Pepper, Padron
Chili Pepper, Paprika
Chili Pepper, Pasilla Bajio
Chili Pepper, Red Mushroom
Chili Pepper, Ring Of Fire
Chili Pepper, Scotch Bonnet
Chili Pepper, Serrano
Chili Pepper, Serrano del Sol Hybrid
Chili Pepper, Shi****o
Chili Pepper, Sonora
Chili Pepper, Sport
Chili Pepper, Sweet Banana
Chili Pepper, Tabasco
Chili Pepper, Thai
Corn, Casino (Sweet Early, Yellow)
Corn, Sugar Peal (White)
Cucumber, Garden Oasis
Cucumber, Lemon
Cucumber, Longfellow
Cucumber, Palace King
Cucumber, Persian
Cucumber, Sooyow Nishiki
Cucumber, Sweet Armenian
Cucumber, Sweet Diva
Eggplant, a long black type [row 1]
Eggplant, a long black type [row 2]
Eggplant, Antiqua
Eggplant, Cloud Nine
Eggplant, 'Fairytale' Baby
Eggplant, Fenguan Purple
Eggplant, Florida Highbush
Eggplant, Green Goddess
Eggplant, Ichiban
Eggplant, Kurume
Eggplant, Listada de Gandia
Eggplant, Long Purple
Eggplant, Machiaw
Eggplant, Nadia
Eggplant, Orient Express Black
Eggplant, Pingtung Long
Eggplant, Rosa Bianca
Eggplant, White Lightning
Kiwi, Female
Kiwi, Male
Melon, Ambrosia
Melon, Crenshaw Early Hybrid
Melon, Pineapple
Melon, Sakata's Sweet
Melon, Zatta
Okra, Clemson Spineless
Papaya, TR Hovey
Pimento, Elite Hybrid
Pumpkin, Marina di Chioggia
Pumpkin, Musque de Provence
Pumpkin, Small Baby Pam
Squash, Carnival Sweet Dumpling
Squash, Delicata
Squash, Early Butternut
Squash, Green Acorn
Squash, Honey Bear
Squash, Hubbard Blue Ballet
Squash, Kabocha Green Cha-Cha
Squash, Kabocha Orange Sunshine
Squash, Okra Clemson Spineless
Squash, Small Striped Sweet Dumpling
Squash, Summer Patty Pan
Squash, Yellow Crookneck
Squash, Zucchini Black Beauty
Squash, Zucchini Bush Baby
Squash, Zucchini Eight Ball
Squash, Zucchini Golden
Squash, Zucchini Italian Ribbed
Strawberry, Berry Basket
Strawberry, Pretty In Pink
Strawberry, Quinalt
Strawberry, Sequoia
Strawberry, White Alpine
Tomatillo, Cisneros
Tomatillo, Pineapple
Tomatillo, Purple
Tomato, Abraham Lincoln (Regular)
Tomato, Ananas Noir
Tomato, Anna Russian
Tomato, Apple Green
Tomato, Aunt Gertie's Gold
Tomato, Aunt Ginny's
Tomato, Aunt Ruby's German Green
Tomato, Ball's Beefsteak VFFT Hybrid
Tomato, Banana Legs
Tomato, Beauty
Tomato, Beefmaster
Tomato, Beefsteak
Tomato, Bella Rosa VFFNA Hybrid
Tomato, Bellstar
Tomato, Better Boy [row 1]
Tomato, Better Boy [row 2]
Tomato, Better Bush
Tomato, Big Beef VFFNTA Hybrid
Tomato, Big Boy Hybrid
Tomato, Big Raspberry
Tomato, Big Zebra
Tomato, Black Carbon
Tomato, Black Cherry [row 1]
Tomato, Black Cherry [row 2]
Tomato, Black From Tula [row 1]
Tomato, Black From Tula [row 2]
Tomato, Black Krim
Tomato, Black Pear
Tomato, Black Plum
Tomato, Black Zebra
Tomato, Brandywine (Red)
Tomato, Brandywine OTV
Tomato, Brandywine Red (Landis Valley Strain)
Tomato, Brandywine Sudduth's Strain
Tomato, Bush Champion VFFA Hybrid
Tomato, Bush Early Girl VFFNT Hybrid
Tomato, Carbon
Tomato, Celebrity
Tomato, Ceylon
Tomato, Champion VFNT Hybrid
Tomato, Chapman
Tomato, Cherokee Purple
Tomato, Copia
Tomato, Costoluto Fiorentino
Tomato, Cuban Yellow Grape
Tomato, Dad's Mug
Tomato, Dixie Golden Giant
Tomato, Dorothy's Green
Tomato, Dr. Carolyn
Tomato, Dr. Lyle
Tomato, Dr. Neal
Tomato, Dr. Wyches Yellow
Tomato, Druzba
Tomato, Earl's Faux
Tomato, Early Girl
Tomato, Elfin
Tomato, First Prize VFFNT Hybrid
Tomato, Galina Cherry
Tomato, Georgia Streak
Tomato, German Johnson Regular Leaf
Tomato, German Pink
Tomato, Giant Belgium
Tomato, Goliath VFFNT Hybrid
Tomato, Grape
Tomato, Green Giant
Tomato, Green Grape
Tomato, Green Zebra
Tomato, Henderson's Winsall
Tomato, Hillbilly [row 1]
Tomato, Hillbilly [row 2]
Tomato, Hungarian Heart
Tomato, Hungarian Italian
Tomato, Ildi
Tomato, Isis Candy
Tomato, Italian Red Pear
Tomato, Japanese Oxheart
Tomato, Jersey Devil
Tomato, Jetsetter VFFNTA Hybrid
Tomato, Julia Child
Tomato, Juliet Hybrid
Tomato, Kelloggs Breakfast
Tomato, Kentucky Beefsteak
Tomato, Lillian's Yellow Heirloom
Tomato, Limmony
Tomato, Magnus
Tomato, Manyel Yellow
Tomato, Marianna's Peace
Tomato, Marizol Purple
Tomato, Matina
Tomato, Mexico
Tomato, Micado Violettor
Tomato, Momotaro [row 1]
Tomato, Momotaro [row 2]
Tomato, Mortgage Lifter
Tomato, Moscovich
Tomato, Mountain Belle VF Hybrid
Tomato, Mr. Stripey (Tigerella)
Tomato, Mule Team
Tomato, Nectarine
Tomato, Nepal
Tomato, Northern Lights
Tomato, Oaxacan Jewel
Tomato, Opalka
Tomato, Orange Banana
Tomato, Orange Russian 117
Tomato, Orange Strawberry
Tomato, Oxheart
Tomato, Pantano Romanesco
Tomato, Patio F Hybrid
Tomato, Paul Robeson
Tomato, Pear - Red
Tomato, Pear - Yellow
Tomato, Pearson Heirloom
Tomato, Persimmon
Tomato, Polish Linguisa
Tomato, Porter
Tomato, Prudens Purple
Tomato, Purple Perfect
Tomato, Red Pear
Tomato, Red Pear (mini)
Tomato, Red Robin
Tomato, Riesentraube
Tomato, Rocky
Tomato, Rostova
Tomato, Rowdy Red
Tomato, Russian Rose
Tomato, Rutgers VFA
Tomato, San Marzano Redorta [row 1]
Tomato, San Marzano Redorta [row 2]
Tomato, Santa Clara Canner
Tomato, Sausage
Tomato, Shady Lady VFTA Hybrid
Tomato, Sioux
Tomato, Solar Fire VFFF Hybrid
Tomato, Soldacki
Tomato, Stupice
Tomato, Sun Gold [row 1]
Tomato, Sun Gold [row 2]
Tomato, Super Fantastic VF Hybrid
Tomato, Sweet Million FNT Hybrid
Tomato, Tappy's Finest
Tomato, Thessaloniki
Tomato, Tigerella
Tomato, Tiny Tim
Tomato, Todd County Amish
Tomato, Tommy Toe
Tomato, Ukrainian Pear
Tomato, Valencia
Tomato, Verna Orange
Tomato, Virginia Sweets
Tomato, Viva Italia BFFNA Hybrid
Tomato, White Beauty
Tomato, White Queen
Tomato, Wild Cherry
Tomato, Wisconsin 55
Tomato, Yellow Brandywine, Platfoot Strain
Tomato, Yellow Pear
Tomato, Yellow Pear (mini)
Tomato, Zapotec
Watermellon, Sweet Crimson
Watermelon, Black Mountain
Watermelon, Cream Of Saskatchewan
Watermelon, Little Baby Flower
Amaranth, Leaf / Calaloo
California Spicy Greens
Chard, French
Chard, Italian Silver Rib
Chard, Pot of Gold
Chard, Scarlet Charlotte
Chard, Swiss
Chard, Swiss Bright Lights
Chard, Swiss Red aka Rhubarb Chard
Chickweed
Clover, Red
Crispy Winter Greens
Dandelion, French
Dandelion, Italian Red Rib
Dandelion, Italian Standard
Endive, Tres Fine
Erba Stella / Minutina
Kale, Beira
Kale, Curly
Kale, Red Russian
Kale, Starbor
Kale, Toscano
Komatsuna Summerfest
Lettuce, Butter Crunch
Lettuce, Romaine
Lettuce, Sea Of Red
Lettuce, Taiwan Sword Leaf
Longevity
Mache
Miner's Lettuce
Mizuna, Kyona
Mizuna, Purple
Mustard Green, Champion
Mustard Green, Collards
Mustard Green, Garnet Giant
Mustard Green, Green Wave
Mustard Green, Ho Mi Z
Mustard Green, Osaka Purple
Mustard Green, Red Mustard
Mustard Green, Scarlot Frills
Pac Choi, Black Summer
Pac Choi, Da Cheong Chae
Pac Choi, Fuyo Shomi
Pac Choi, Green Fortune Baby
Pac Choi, Mei Qing
Pac Choi, Red
Radicchio, Trevisio
Radish Greens
Shiso, Aka (red)
Shiso, Ao (green)
Spigariello / Leaf Broccoli
Spinach, Beetberry
Spinach, Bordeaux
Spinach, Red Malabar
Spinach, Savoyed Leaf Regiment
Spinach, Spargo
Spinach, Summer Perfection
Spinach, Whale
Tokyo Bekana
Alumroot
Angelica
Anise
Arnica
Arugula, Eruca / Rochette
Arugula, Sylvetta
Arugula, Sylvetta Olive-Leafed
Arugula, Wild Rocket
Aztec Sweet Herb
Balm Of Gilead
Basil, African Blue
Basil, Amethyst Improved
Basil, Anise
Basil, Aussie Sweet
Basil, Genovese [row 1]
Basil, Genovese [row 2]
Basil, Greek Columnar
Basil, Holy
Basil, Holy Red & Green
Basil, Italian Pesto
Basil, Lemon
Basil, Lime
Basil, Profuma di Genova
Basil, Queenette
Basil, Sweet Dani
Basil, Sweet Thai
Basil, True Thai
Bergamot, Bee Balm
Bergamot, Bee Balm (Panorama Mix)
Bergamot, Rose
Bergamot, Wild
Betony
Borage
Burnett, Salad
Calamintha, Cretian Calamint
Calamintha, Mentuccia / Nepitella
Calendula
Calendula, Alpha
Calendula, Resina
Caraway
Cardamom
Cat Mint, Walker's Low
Catnip
Chamomile, Common
Chamomile, German
Chamomile, Lawn / Roman
Chicory
Chives, Fine Leaf
Chives, Garlic
Chives, Nira
Chives, Onion
Chives, Standard
Chives, Staro
Cilantro [row 1]
Cilantro [row 2]
Cilantro, Santo
Cilantro, Slow Bolt
Cilantro, Vietnamese / Rau Ram
Costmary / Alecost
Cress, Curly aka Cressida
Cress, Persian
Cress, Upland
Cress, Watercress
Cress, Watercress English
Culantro
Curry Plant
Dandelion
Dill, Superdukat
Echinacae, Paradox Yellow
Echinacae, Purple
Epazote
Fennel, Bronze Bulbing
Fennel, Bulbing
Fennel, Green
Fenugreek
Feverfew
Feverfew, Golden
Fo Ti / Elixer Of Life
Galangal / Thai Ginger
Geranium, Lemon Scented
Geranium, Peppermint
Gotu Kola
Hawaiian Ti
Heal All
Horehound
Horseradish
Houttuynia, Chameleon
Hyssop
Hyssop, Anise
Lady's Mantle
Lamb's Ear
Lavender, Intermedia
Lavender, Provence
Lavender, Sweet
Lavender, Tuscan
Lavender, White Spica
Lemon Balm
Lemon Grass
Lemon Verbena
Licorice
Lovage
Love In A Mist
Malva Santa / False Boldo
Marigold, Lemon Mint
Marigold, Mexican Mint / Spanish Tarragon
Marshmallow
Mint, Apple
Mint, Banana
Mint, Candy
Mint, Chocolate
Mint, Cordifolia
Mint, Corsican
Mint, Curly
Mint, Egyptian
Mint, English
Mint, Hummingbird
Mint, Jamaican
Mint, Julep
Mint, Kentucky Colonel
Mint, Lavender
Mint, Lemon
Mint, Lime
Mint, Mojito
Mint, Mountain
Mint, Orange
Mint, Pennyroyal
Mint, Peppermint
Mint, Spearmint
Mint, Swiss
Mint, The Best
Mint, Yerba Buena
Moujean Tea
Mugwort
Mugwort, Variegated
Nutmeg Bush / Ginger Bush (Tetradenia riparia)
Oregano, Cuban
Oregano, Greek
Oregano, Hot & Spicy
Oregano, Italian
Oregano, Jim's Best
Oregano, Kaliteri
Oregano, Marjoram Zaatar
Oregano, Mexican
Oregano, Santa Cruz
Oregano, Sweet Marjoram
Oregano, Syrian
Parsley, Curled
Parsley, Forest Green
Parsley, Italian
Parsley, Italian Gigante
Patchouli
Peppergrass
Pyrethrum
Rosemary, French
Rosemary, Spice Island
Rosemary, Tuscan Blue
Rue
Sage, Bath
Sage, Beach
Sage, Bergarten
Sage, Chiapas
Sage, Clary
Sage, Cleveland
Sage, Dwarf
Sage, Extrakta
Sage, Holt's Mammoth
Sage, Italian Aromatic
Sage, Purple
Sage, Tangerine
Sage, White
Salsify, Mammoth Sandwich Island
Saltwort
Santolina, Green
Savory, Lemon
Savory, Summer
Savory, Winter
Scallions
Scallions, Delicious Duo
Scorzonera, Belstar Super
Sculpit
Self Heal
Shui Qin / Chinese Celery
Sorrel, French
Sorrel, Red Veined
St. John's Wort
Stevia
Sweet Woodruff
Taragon
Thyme, Caraway
Thyme, Lavender
Thyme, Lemon
Thyme, Lime
Thyme, Mint
Thyme, Mother Of Thyme
Thyme, Orange
Thyme, Orange Balsam
Thyme, Oregano Scented
Thyme, Spicy Orange
Tiger Grass
Valerian
Vicks Plant
Violet, Sweet
Yarrow, Paprika
Yarrow, Sweet
Yerba Buena
Yerba Santa / Hoja Santa / Pepper Leaf
Bean, Adzuki
Bean, Asian Yard-Long
Bean, Bush French Filet Beans:
Bean, Climbing French Bean
Bean, Dwarf French Bean Vanguard
Bean, Edamame
Bean, Edamame
Bean, Emerite Pole Filet
Bean, Fava Cascine
Bean, Fava Super Agazdurce
Bean, Italian Bush Roma Improved
Bean, Koala
Bean, Lima Ford Hook
Bean, Painted Lady
Bean, Purple French Fillet
Bean, Rolande
Bean, Romano Flat
Bean, Scarlet Runner
Bean, Spanish Musica Early Pole
Bean, Yellow French Fillet
Hops
Pea, Dwarf Gray Sugar
Pea, Oregon Giant Snow
Pea, Sugarsnap
Pea, Super Sugar Snap
Pea, Sweet Snow
Radish, Pod
Beet, Baby Ball
Beet, Bikores
Beet, Bulls Blood
Beet, Candystripe
Beet, Golden
Beet, Touchstone Gold
Burdock
Burdock, Chiko
Celery Root, Brilliant
Celery Root, Celeriac
Garlic, Elephant
Garlic, standard
Kohlrabi, Crispy Colors Duo
Kohlrabi, Kossak
Kohlrabi, Purple
Kohlrabi, White Kossak
Onion, Di Genova
Onion, Gold Coin
Onion, Red Marble
Onion, Red Torpedo
Onion, Rossa Savonese
Onion, Tropea Rossa (famous)
Onion, Yellow Granex
Parsley Root, Arat
Parsnip, Albion
Parsnip, Lancer
Potato, French Fingerling
Potato, Red Thumb
Potato, Russian Banana
Radish, Daikon Discovery
Radish, Daikon Miyashige
Radish, Shunkyo Semi-Long
Rutebaga, Helenor
Rutebaga, Yellow American Purple Top
Shallot
Shallot, Saffron
Shallots, Ambition
Taro, Midori
Taro, Purple Root
Turnip Top
Turnip, Di Milano a Colleto Viola
Amaranth, Grain / Prince's Feather
Artichoke, Imperial Star
Asparagus, Jersey Knight
Brussels Sprouts
Cabbage, Chinese
Cabbage, Savoy
Celery
Celery, Cutting aka Par-Cel
Celery, Seasoning
Flax, Omega
Leek, American Flag
Leek, Baby Bunch
Leek, French Baby Primer
Leek, King Richard
Leek, Megaton
Leek, Ramps
Leek, Upton
Purslane, French
Purslane, Goldeberg Bolden
Purslane, Red Gruner
Rhubarb

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